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-rw-r--r--crypto/Kconfig23
-rw-r--r--crypto/Makefile1
-rw-r--r--crypto/adiantum.c658
-rw-r--r--crypto/tcrypt.c12
-rw-r--r--crypto/testmgr.c12
-rw-r--r--crypto/testmgr.h461
6 files changed, 1167 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index eaeb8a986b7d..b6376d5d973e 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -501,6 +501,29 @@ config CRYPTO_NHPOLY1305
select CRYPTO_HASH
select CRYPTO_POLY1305
+config CRYPTO_ADIANTUM
+ tristate "Adiantum support"
+ select CRYPTO_CHACHA20
+ select CRYPTO_POLY1305
+ select CRYPTO_NHPOLY1305
+ help
+ Adiantum is a tweakable, length-preserving encryption mode
+ designed for fast and secure disk encryption, especially on
+ CPUs without dedicated crypto instructions. It encrypts
+ each sector using the XChaCha12 stream cipher, two passes of
+ an ε-almost-∆-universal hash function, and an invocation of
+ the AES-256 block cipher on a single 16-byte block. On CPUs
+ without AES instructions, Adiantum is much faster than
+ AES-XTS.
+
+ Adiantum's security is provably reducible to that of its
+ underlying stream and block ciphers, subject to a security
+ bound. Unlike XTS, Adiantum is a true wide-block encryption
+ mode, so it actually provides an even stronger notion of
+ security than XTS, subject to the security bound.
+
+ If unsure, say N.
+
comment "Hash modes"
config CRYPTO_CMAC
diff --git a/crypto/Makefile b/crypto/Makefile
index c3310c85f09f..5e789dc2d4fd 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -85,6 +85,7 @@ obj-$(CONFIG_CRYPTO_LRW) += lrw.o
obj-$(CONFIG_CRYPTO_XTS) += xts.o
obj-$(CONFIG_CRYPTO_CTR) += ctr.o
obj-$(CONFIG_CRYPTO_KEYWRAP) += keywrap.o
+obj-$(CONFIG_CRYPTO_ADIANTUM) += adiantum.o
obj-$(CONFIG_CRYPTO_NHPOLY1305) += nhpoly1305.o
obj-$(CONFIG_CRYPTO_GCM) += gcm.o
obj-$(CONFIG_CRYPTO_CCM) += ccm.o
diff --git a/crypto/adiantum.c b/crypto/adiantum.c
new file mode 100644
index 000000000000..2dfcf12fd452
--- /dev/null
+++ b/crypto/adiantum.c
@@ -0,0 +1,658 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Adiantum length-preserving encryption mode
+ *
+ * Copyright 2018 Google LLC
+ */
+
+/*
+ * Adiantum is a tweakable, length-preserving encryption mode designed for fast
+ * and secure disk encryption, especially on CPUs without dedicated crypto
+ * instructions. Adiantum encrypts each sector using the XChaCha12 stream
+ * cipher, two passes of an ε-almost-∆-universal (εA∆U) hash function based on
+ * NH and Poly1305, and an invocation of the AES-256 block cipher on a single
+ * 16-byte block. See the paper for details:
+ *
+ * Adiantum: length-preserving encryption for entry-level processors
+ * (https://eprint.iacr.org/2018/720.pdf)
+ *
+ * For flexibility, this implementation also allows other ciphers:
+ *
+ * - Stream cipher: XChaCha12 or XChaCha20
+ * - Block cipher: any with a 128-bit block size and 256-bit key
+ *
+ * This implementation doesn't currently allow other εA∆U hash functions, i.e.
+ * HPolyC is not supported. This is because Adiantum is ~20% faster than HPolyC
+ * but still provably as secure, and also the εA∆U hash function of HBSH is
+ * formally defined to take two inputs (tweak, message) which makes it difficult
+ * to wrap with the crypto_shash API. Rather, some details need to be handled
+ * here. Nevertheless, if needed in the future, support for other εA∆U hash
+ * functions could be added here.
+ */
+
+#include <crypto/b128ops.h>
+#include <crypto/chacha.h>
+#include <crypto/internal/hash.h>
+#include <crypto/internal/skcipher.h>
+#include <crypto/nhpoly1305.h>
+#include <crypto/scatterwalk.h>
+#include <linux/module.h>
+
+#include "internal.h"
+
+/*
+ * Size of right-hand block of input data, in bytes; also the size of the block
+ * cipher's block size and the hash function's output.
+ */
+#define BLOCKCIPHER_BLOCK_SIZE 16
+
+/* Size of the block cipher key (K_E) in bytes */
+#define BLOCKCIPHER_KEY_SIZE 32
+
+/* Size of the hash key (K_H) in bytes */
+#define HASH_KEY_SIZE (POLY1305_BLOCK_SIZE + NHPOLY1305_KEY_SIZE)
+
+/*
+ * The specification allows variable-length tweaks, but Linux's crypto API
+ * currently only allows algorithms to support a single length. The "natural"
+ * tweak length for Adiantum is 16, since that fits into one Poly1305 block for
+ * the best performance. But longer tweaks are useful for fscrypt, to avoid
+ * needing to derive per-file keys. So instead we use two blocks, or 32 bytes.
+ */
+#define TWEAK_SIZE 32
+
+struct adiantum_instance_ctx {
+ struct crypto_skcipher_spawn streamcipher_spawn;
+ struct crypto_spawn blockcipher_spawn;
+ struct crypto_shash_spawn hash_spawn;
+};
+
+struct adiantum_tfm_ctx {
+ struct crypto_skcipher *streamcipher;
+ struct crypto_cipher *blockcipher;
+ struct crypto_shash *hash;
+ struct poly1305_key header_hash_key;
+};
+
+struct adiantum_request_ctx {
+
+ /*
+ * Buffer for right-hand block of data, i.e.
+ *
+ * P_L => P_M => C_M => C_R when encrypting, or
+ * C_R => C_M => P_M => P_L when decrypting.
+ *
+ * Also used to build the IV for the stream cipher.
+ */
+ union {
+ u8 bytes[XCHACHA_IV_SIZE];
+ __le32 words[XCHACHA_IV_SIZE / sizeof(__le32)];
+ le128 bignum; /* interpret as element of Z/(2^{128}Z) */
+ } rbuf;
+
+ bool enc; /* true if encrypting, false if decrypting */
+
+ /*
+ * The result of the Poly1305 εA∆U hash function applied to
+ * (message length, tweak).
+ */
+ le128 header_hash;
+
+ /* Sub-requests, must be last */
+ union {
+ struct shash_desc hash_desc;
+ struct skcipher_request streamcipher_req;
+ } u;
+};
+
+/*
+ * Given the XChaCha stream key K_S, derive the block cipher key K_E and the
+ * hash key K_H as follows:
+ *
+ * K_E || K_H || ... = XChaCha(key=K_S, nonce=1||0^191)
+ *
+ * Note that this denotes using bits from the XChaCha keystream, which here we
+ * get indirectly by encrypting a buffer containing all 0's.
+ */
+static int adiantum_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct {
+ u8 iv[XCHACHA_IV_SIZE];
+ u8 derived_keys[BLOCKCIPHER_KEY_SIZE + HASH_KEY_SIZE];
+ struct scatterlist sg;
+ struct crypto_wait wait;
+ struct skcipher_request req; /* must be last */
+ } *data;
+ u8 *keyp;
+ int err;
+
+ /* Set the stream cipher key (K_S) */
+ crypto_skcipher_clear_flags(tctx->streamcipher, CRYPTO_TFM_REQ_MASK);
+ crypto_skcipher_set_flags(tctx->streamcipher,
+ crypto_skcipher_get_flags(tfm) &
+ CRYPTO_TFM_REQ_MASK);
+ err = crypto_skcipher_setkey(tctx->streamcipher, key, keylen);
+ crypto_skcipher_set_flags(tfm,
+ crypto_skcipher_get_flags(tctx->streamcipher) &
+ CRYPTO_TFM_RES_MASK);
+ if (err)
+ return err;
+
+ /* Derive the subkeys */
+ data = kzalloc(sizeof(*data) +
+ crypto_skcipher_reqsize(tctx->streamcipher), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+ data->iv[0] = 1;
+ sg_init_one(&data->sg, data->derived_keys, sizeof(data->derived_keys));
+ crypto_init_wait(&data->wait);
+ skcipher_request_set_tfm(&data->req, tctx->streamcipher);
+ skcipher_request_set_callback(&data->req, CRYPTO_TFM_REQ_MAY_SLEEP |
+ CRYPTO_TFM_REQ_MAY_BACKLOG,
+ crypto_req_done, &data->wait);
+ skcipher_request_set_crypt(&data->req, &data->sg, &data->sg,
+ sizeof(data->derived_keys), data->iv);
+ err = crypto_wait_req(crypto_skcipher_encrypt(&data->req), &data->wait);
+ if (err)
+ goto out;
+ keyp = data->derived_keys;
+
+ /* Set the block cipher key (K_E) */
+ crypto_cipher_clear_flags(tctx->blockcipher, CRYPTO_TFM_REQ_MASK);
+ crypto_cipher_set_flags(tctx->blockcipher,
+ crypto_skcipher_get_flags(tfm) &
+ CRYPTO_TFM_REQ_MASK);
+ err = crypto_cipher_setkey(tctx->blockcipher, keyp,
+ BLOCKCIPHER_KEY_SIZE);
+ crypto_skcipher_set_flags(tfm,
+ crypto_cipher_get_flags(tctx->blockcipher) &
+ CRYPTO_TFM_RES_MASK);
+ if (err)
+ goto out;
+ keyp += BLOCKCIPHER_KEY_SIZE;
+
+ /* Set the hash key (K_H) */
+ poly1305_core_setkey(&tctx->header_hash_key, keyp);
+ keyp += POLY1305_BLOCK_SIZE;
+
+ crypto_shash_clear_flags(tctx->hash, CRYPTO_TFM_REQ_MASK);
+ crypto_shash_set_flags(tctx->hash, crypto_skcipher_get_flags(tfm) &
+ CRYPTO_TFM_REQ_MASK);
+ err = crypto_shash_setkey(tctx->hash, keyp, NHPOLY1305_KEY_SIZE);
+ crypto_skcipher_set_flags(tfm, crypto_shash_get_flags(tctx->hash) &
+ CRYPTO_TFM_RES_MASK);
+ keyp += NHPOLY1305_KEY_SIZE;
+ WARN_ON(keyp != &data->derived_keys[ARRAY_SIZE(data->derived_keys)]);
+out:
+ kzfree(data);
+ return err;
+}
+
+/* Addition in Z/(2^{128}Z) */
+static inline void le128_add(le128 *r, const le128 *v1, const le128 *v2)
+{
+ u64 x = le64_to_cpu(v1->b);
+ u64 y = le64_to_cpu(v2->b);
+
+ r->b = cpu_to_le64(x + y);
+ r->a = cpu_to_le64(le64_to_cpu(v1->a) + le64_to_cpu(v2->a) +
+ (x + y < x));
+}
+
+/* Subtraction in Z/(2^{128}Z) */
+static inline void le128_sub(le128 *r, const le128 *v1, const le128 *v2)
+{
+ u64 x = le64_to_cpu(v1->b);
+ u64 y = le64_to_cpu(v2->b);
+
+ r->b = cpu_to_le64(x - y);
+ r->a = cpu_to_le64(le64_to_cpu(v1->a) - le64_to_cpu(v2->a) -
+ (x - y > x));
+}
+
+/*
+ * Apply the Poly1305 εA∆U hash function to (message length, tweak) and save the
+ * result to rctx->header_hash.
+ *
+ * This value is reused in both the first and second hash steps. Specifically,
+ * it's added to the result of an independently keyed εA∆U hash function (for
+ * equal length inputs only) taken over the message. This gives the overall
+ * Adiantum hash of the (tweak, message) pair.
+ */
+static void adiantum_hash_header(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ const struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct adiantum_request_ctx *rctx = skcipher_request_ctx(req);
+ const unsigned int bulk_len = req->cryptlen - BLOCKCIPHER_BLOCK_SIZE;
+ struct {
+ __le64 message_bits;
+ __le64 padding;
+ } header = {
+ .message_bits = cpu_to_le64((u64)bulk_len * 8)
+ };
+ struct poly1305_state state;
+
+ poly1305_core_init(&state);
+
+ BUILD_BUG_ON(sizeof(header) % POLY1305_BLOCK_SIZE != 0);
+ poly1305_core_blocks(&state, &tctx->header_hash_key,
+ &header, sizeof(header) / POLY1305_BLOCK_SIZE);
+
+ BUILD_BUG_ON(TWEAK_SIZE % POLY1305_BLOCK_SIZE != 0);
+ poly1305_core_blocks(&state, &tctx->header_hash_key, req->iv,
+ TWEAK_SIZE / POLY1305_BLOCK_SIZE);
+
+ poly1305_core_emit(&state, &rctx->header_hash);
+}
+
+/* Hash the left-hand block (the "bulk") of the message using NHPoly1305 */
+static int adiantum_hash_message(struct skcipher_request *req,
+ struct scatterlist *sgl, le128 *digest)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ const struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct adiantum_request_ctx *rctx = skcipher_request_ctx(req);
+ const unsigned int bulk_len = req->cryptlen - BLOCKCIPHER_BLOCK_SIZE;
+ struct shash_desc *hash_desc = &rctx->u.hash_desc;
+ struct sg_mapping_iter miter;
+ unsigned int i, n;
+ int err;
+
+ hash_desc->tfm = tctx->hash;
+ hash_desc->flags = 0;
+
+ err = crypto_shash_init(hash_desc);
+ if (err)
+ return err;
+
+ sg_miter_start(&miter, sgl, sg_nents(sgl),
+ SG_MITER_FROM_SG | SG_MITER_ATOMIC);
+ for (i = 0; i < bulk_len; i += n) {
+ sg_miter_next(&miter);
+ n = min_t(unsigned int, miter.length, bulk_len - i);
+ err = crypto_shash_update(hash_desc, miter.addr, n);
+ if (err)
+ break;
+ }
+ sg_miter_stop(&miter);
+ if (err)
+ return err;
+
+ return crypto_shash_final(hash_desc, (u8 *)digest);
+}
+
+/* Continue Adiantum encryption/decryption after the stream cipher step */
+static int adiantum_finish(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ const struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct adiantum_request_ctx *rctx = skcipher_request_ctx(req);
+ const unsigned int bulk_len = req->cryptlen - BLOCKCIPHER_BLOCK_SIZE;
+ le128 digest;
+ int err;
+
+ /* If decrypting, decrypt C_M with the block cipher to get P_M */
+ if (!rctx->enc)
+ crypto_cipher_decrypt_one(tctx->blockcipher, rctx->rbuf.bytes,
+ rctx->rbuf.bytes);
+
+ /*
+ * Second hash step
+ * enc: C_R = C_M - H_{K_H}(T, C_L)
+ * dec: P_R = P_M - H_{K_H}(T, P_L)
+ */
+ err = adiantum_hash_message(req, req->dst, &digest);
+ if (err)
+ return err;
+ le128_add(&digest, &digest, &rctx->header_hash);
+ le128_sub(&rctx->rbuf.bignum, &rctx->rbuf.bignum, &digest);
+ scatterwalk_map_and_copy(&rctx->rbuf.bignum, req->dst,
+ bulk_len, BLOCKCIPHER_BLOCK_SIZE, 1);
+ return 0;
+}
+
+static void adiantum_streamcipher_done(struct crypto_async_request *areq,
+ int err)
+{
+ struct skcipher_request *req = areq->data;
+
+ if (!err)
+ err = adiantum_finish(req);
+
+ skcipher_request_complete(req, err);
+}
+
+static int adiantum_crypt(struct skcipher_request *req, bool enc)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ const struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct adiantum_request_ctx *rctx = skcipher_request_ctx(req);
+ const unsigned int bulk_len = req->cryptlen - BLOCKCIPHER_BLOCK_SIZE;
+ unsigned int stream_len;
+ le128 digest;
+ int err;
+
+ if (req->cryptlen < BLOCKCIPHER_BLOCK_SIZE)
+ return -EINVAL;
+
+ rctx->enc = enc;
+
+ /*
+ * First hash step
+ * enc: P_M = P_R + H_{K_H}(T, P_L)
+ * dec: C_M = C_R + H_{K_H}(T, C_L)
+ */
+ adiantum_hash_header(req);
+ err = adiantum_hash_message(req, req->src, &digest);
+ if (err)
+ return err;
+ le128_add(&digest, &digest, &rctx->header_hash);
+ scatterwalk_map_and_copy(&rctx->rbuf.bignum, req->src,
+ bulk_len, BLOCKCIPHER_BLOCK_SIZE, 0);
+ le128_add(&rctx->rbuf.bignum, &rctx->rbuf.bignum, &digest);
+
+ /* If encrypting, encrypt P_M with the block cipher to get C_M */
+ if (enc)
+ crypto_cipher_encrypt_one(tctx->blockcipher, rctx->rbuf.bytes,
+ rctx->rbuf.bytes);
+
+ /* Initialize the rest of the XChaCha IV (first part is C_M) */
+ BUILD_BUG_ON(BLOCKCIPHER_BLOCK_SIZE != 16);
+ BUILD_BUG_ON(XCHACHA_IV_SIZE != 32); /* nonce || stream position */
+ rctx->rbuf.words[4] = cpu_to_le32(1);
+ rctx->rbuf.words[5] = 0;
+ rctx->rbuf.words[6] = 0;
+ rctx->rbuf.words[7] = 0;
+
+ /*
+ * XChaCha needs to be done on all the data except the last 16 bytes;
+ * for disk encryption that usually means 4080 or 496 bytes. But ChaCha
+ * implementations tend to be most efficient when passed a whole number
+ * of 64-byte ChaCha blocks, or sometimes even a multiple of 256 bytes.
+ * And here it doesn't matter whether the last 16 bytes are written to,
+ * as the second hash step will overwrite them. Thus, round the XChaCha
+ * length up to the next 64-byte boundary if possible.
+ */
+ stream_len = bulk_len;
+ if (round_up(stream_len, CHACHA_BLOCK_SIZE) <= req->cryptlen)
+ stream_len = round_up(stream_len, CHACHA_BLOCK_SIZE);
+
+ skcipher_request_set_tfm(&rctx->u.streamcipher_req, tctx->streamcipher);
+ skcipher_request_set_crypt(&rctx->u.streamcipher_req, req->src,
+ req->dst, stream_len, &rctx->rbuf);
+ skcipher_request_set_callback(&rctx->u.streamcipher_req,
+ req->base.flags,
+ adiantum_streamcipher_done, req);
+ return crypto_skcipher_encrypt(&rctx->u.streamcipher_req) ?:
+ adiantum_finish(req);
+}
+
+static int adiantum_encrypt(struct skcipher_request *req)
+{
+ return adiantum_crypt(req, true);
+}
+
+static int adiantum_decrypt(struct skcipher_request *req)
+{
+ return adiantum_crypt(req, false);
+}
+
+static int adiantum_init_tfm(struct crypto_skcipher *tfm)
+{
+ struct skcipher_instance *inst = skcipher_alg_instance(tfm);
+ struct adiantum_instance_ctx *ictx = skcipher_instance_ctx(inst);
+ struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+ struct crypto_skcipher *streamcipher;
+ struct crypto_cipher *blockcipher;
+ struct crypto_shash *hash;
+ unsigned int subreq_size;
+ int err;
+
+ streamcipher = crypto_spawn_skcipher(&ictx->streamcipher_spawn);
+ if (IS_ERR(streamcipher))
+ return PTR_ERR(streamcipher);
+
+ blockcipher = crypto_spawn_cipher(&ictx->blockcipher_spawn);
+ if (IS_ERR(blockcipher)) {
+ err = PTR_ERR(blockcipher);
+ goto err_free_streamcipher;
+ }
+
+ hash = crypto_spawn_shash(&ictx->hash_spawn);
+ if (IS_ERR(hash)) {
+ err = PTR_ERR(hash);
+ goto err_free_blockcipher;
+ }
+
+ tctx->streamcipher = streamcipher;
+ tctx->blockcipher = blockcipher;
+ tctx->hash = hash;
+
+ BUILD_BUG_ON(offsetofend(struct adiantum_request_ctx, u) !=
+ sizeof(struct adiantum_request_ctx));
+ subreq_size = max(FIELD_SIZEOF(struct adiantum_request_ctx,
+ u.hash_desc) +
+ crypto_shash_descsize(hash),
+ FIELD_SIZEOF(struct adiantum_request_ctx,
+ u.streamcipher_req) +
+ crypto_skcipher_reqsize(streamcipher));
+
+ crypto_skcipher_set_reqsize(tfm,
+ offsetof(struct adiantum_request_ctx, u) +
+ subreq_size);
+ return 0;
+
+err_free_blockcipher:
+ crypto_free_cipher(blockcipher);
+err_free_streamcipher:
+ crypto_free_skcipher(streamcipher);
+ return err;
+}
+
+static void adiantum_exit_tfm(struct crypto_skcipher *tfm)
+{
+ struct adiantum_tfm_ctx *tctx = crypto_skcipher_ctx(tfm);
+
+ crypto_free_skcipher(tctx->streamcipher);
+ crypto_free_cipher(tctx->blockcipher);
+ crypto_free_shash(tctx->hash);
+}
+
+static void adiantum_free_instance(struct skcipher_instance *inst)
+{
+ struct adiantum_instance_ctx *ictx = skcipher_instance_ctx(inst);
+
+ crypto_drop_skcipher(&ictx->streamcipher_spawn);
+ crypto_drop_spawn(&ictx->blockcipher_spawn);
+ crypto_drop_shash(&ictx->hash_spawn);
+ kfree(inst);
+}
+
+/*
+ * Check for a supported set of inner algorithms.
+ * See the comment at the beginning of this file.
+ */
+static bool adiantum_supported_algorithms(struct skcipher_alg *streamcipher_alg,
+ struct crypto_alg *blockcipher_alg,
+ struct shash_alg *hash_alg)
+{
+ if (strcmp(streamcipher_alg->base.cra_name, "xchacha12") != 0 &&
+ strcmp(streamcipher_alg->base.cra_name, "xchacha20") != 0)
+ return false;
+
+ if (blockcipher_alg->cra_cipher.cia_min_keysize > BLOCKCIPHER_KEY_SIZE ||
+ blockcipher_alg->cra_cipher.cia_max_keysize < BLOCKCIPHER_KEY_SIZE)
+ return false;
+ if (blockcipher_alg->cra_blocksize != BLOCKCIPHER_BLOCK_SIZE)
+ return false;
+
+ if (strcmp(hash_alg->base.cra_name, "nhpoly1305") != 0)
+ return false;
+
+ return true;
+}
+
+static int adiantum_create(struct crypto_template *tmpl, struct rtattr **tb)
+{
+ struct crypto_attr_type *algt;
+ const char *streamcipher_name;
+ const char *blockcipher_name;
+ const char *nhpoly1305_name;
+ struct skcipher_instance *inst;
+ struct adiantum_instance_ctx *ictx;
+ struct skcipher_alg *streamcipher_alg;
+ struct crypto_alg *blockcipher_alg;
+ struct crypto_alg *_hash_alg;
+ struct shash_alg *hash_alg;
+ int err;
+
+ algt = crypto_get_attr_type(tb);
+ if (IS_ERR(algt))
+ return PTR_ERR(algt);
+
+ if ((algt->type ^ CRYPTO_ALG_TYPE_SKCIPHER) & algt->mask)
+ return -EINVAL;
+
+ streamcipher_name = crypto_attr_alg_name(tb[1]);
+ if (IS_ERR(streamcipher_name))
+ return PTR_ERR(streamcipher_name);
+
+ blockcipher_name = crypto_attr_alg_name(tb[2]);
+ if (IS_ERR(blockcipher_name))
+ return PTR_ERR(blockcipher_name);
+
+ nhpoly1305_name = crypto_attr_alg_name(tb[3]);
+ if (nhpoly1305_name == ERR_PTR(-ENOENT))
+ nhpoly1305_name = "nhpoly1305";
+ if (IS_ERR(nhpoly1305_name))
+ return PTR_ERR(nhpoly1305_name);
+
+ inst = kzalloc(sizeof(*inst) + sizeof(*ictx), GFP_KERNEL);
+ if (!inst)
+ return -ENOMEM;
+ ictx = skcipher_instance_ctx(inst);
+
+ /* Stream cipher, e.g. "xchacha12" */
+ err = crypto_grab_skcipher(&ictx->streamcipher_spawn, streamcipher_name,
+ 0, crypto_requires_sync(algt->type,
+ algt->mask));
+ if (err)
+ goto out_free_inst;
+ streamcipher_alg = crypto_spawn_skcipher_alg(&ictx->streamcipher_spawn);
+
+ /* Block cipher, e.g. "aes" */
+ err = crypto_grab_spawn(&ictx->blockcipher_spawn, blockcipher_name,
+ CRYPTO_ALG_TYPE_CIPHER, CRYPTO_ALG_TYPE_MASK);
+ if (err)
+ goto out_drop_streamcipher;
+ blockcipher_alg = ictx->blockcipher_spawn.alg;
+
+ /* NHPoly1305 εA∆U hash function */
+ _hash_alg = crypto_alg_mod_lookup(nhpoly1305_name,
+ CRYPTO_ALG_TYPE_SHASH,
+ CRYPTO_ALG_TYPE_MASK);
+ if (IS_ERR(_hash_alg)) {
+ err = PTR_ERR(_hash_alg);
+ goto out_drop_blockcipher;
+ }
+ hash_alg = __crypto_shash_alg(_hash_alg);
+ err = crypto_init_shash_spawn(&ictx->hash_spawn, hash_alg,
+ skcipher_crypto_instance(inst));
+ if (err) {
+ crypto_mod_put(_hash_alg);
+ goto out_drop_blockcipher;
+ }
+
+ /* Check the set of algorithms */
+ if (!adiantum_supported_algorithms(streamcipher_alg, blockcipher_alg,
+ hash_alg)) {
+ pr_warn("Unsupported Adiantum instantiation: (%s,%s,%s)\n",
+ streamcipher_alg->base.cra_name,
+ blockcipher_alg->cra_name, hash_alg->base.cra_name);
+ err = -EINVAL;
+ goto out_drop_hash;
+ }
+
+ /* Instance fields */
+
+ err = -ENAMETOOLONG;
+ if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
+ "adiantum(%s,%s)", streamcipher_alg->base.cra_name,
+ blockcipher_alg->cra_name) >= CRYPTO_MAX_ALG_NAME)
+ goto out_drop_hash;
+ if (snprintf(inst->alg.base.cra_driver_name, CRYPTO_MAX_ALG_NAME,
+ "adiantum(%s,%s,%s)",
+ streamcipher_alg->base.cra_driver_name,
+ blockcipher_alg->cra_driver_name,
+ hash_alg->base.cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
+ goto out_drop_hash;
+
+ inst->alg.base.cra_blocksize = BLOCKCIPHER_BLOCK_SIZE;
+ inst->alg.base.cra_ctxsize = sizeof(struct adiantum_tfm_ctx);
+ inst->alg.base.cra_alignmask = streamcipher_alg->base.cra_alignmask |
+ hash_alg->base.cra_alignmask;
+ /*
+ * The block cipher is only invoked once per message, so for long
+ * messages (e.g. sectors for disk encryption) its performance doesn't
+ * matter as much as that of the stream cipher and hash function. Thus,
+ * weigh the block cipher's ->cra_priority less.
+ */
+ inst->alg.base.cra_priority = (4 * streamcipher_alg->base.cra_priority +
+ 2 * hash_alg->base.cra_priority +
+ blockcipher_alg->cra_priority) / 7;
+
+ inst->alg.setkey = adiantum_setkey;
+ inst->alg.encrypt = adiantum_encrypt;
+ inst->alg.decrypt = adiantum_decrypt;
+ inst->alg.init = adiantum_init_tfm;
+ inst->alg.exit = adiantum_exit_tfm;
+ inst->alg.min_keysize = crypto_skcipher_alg_min_keysize(streamcipher_alg);
+ inst->alg.max_keysize = crypto_skcipher_alg_max_keysize(streamcipher_alg);
+ inst->alg.ivsize = TWEAK_SIZE;
+
+ inst->free = adiantum_free_instance;
+
+ err = skcipher_register_instance(tmpl, inst);
+ if (err)
+ goto out_drop_hash;
+
+ return 0;
+
+out_drop_hash:
+ crypto_drop_shash(&ictx->hash_spawn);
+out_drop_blockcipher:
+ crypto_drop_spawn(&ictx->blockcipher_spawn);
+out_drop_streamcipher:
+ crypto_drop_skcipher(&ictx->streamcipher_spawn);
+out_free_inst:
+ kfree(inst);
+ return err;
+}
+
+/* adiantum(streamcipher_name, blockcipher_name [, nhpoly1305_name]) */
+static struct crypto_template adiantum_tmpl = {
+ .name = "adiantum",
+ .create = adiantum_create,
+ .module = THIS_MODULE,
+};
+
+static int __init adiantum_module_init(void)
+{
+ return crypto_register_template(&adiantum_tmpl);
+}
+
+static void __exit adiantum_module_exit(void)
+{
+ crypto_unregister_template(&adiantum_tmpl);
+}
+
+module_init(adiantum_module_init);
+module_exit(adiantum_module_exit);
+
+MODULE_DESCRIPTION("Adiantum length-preserving encryption mode");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Eric Biggers <ebiggers@google.com>");
+MODULE_ALIAS_CRYPTO("adiantum");
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 5fb120474902..0590a9204562 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -2320,6 +2320,18 @@ static int do_test(const char *alg, u32 type, u32 mask, int m, u32 num_mb)
test_cipher_speed("ctr(sm4)", DECRYPT, sec, NULL, 0,
speed_template_16);
break;
+
+ case 219:
+ test_cipher_speed("adiantum(xchacha12,aes)", ENCRYPT, sec, NULL,
+ 0, speed_template_32);
+ test_cipher_speed("adiantum(xchacha12,aes)", DECRYPT, sec, NULL,
+ 0, speed_template_32);
+ test_cipher_speed("adiantum(xchacha20,aes)", ENCRYPT, sec, NULL,
+ 0, speed_template_32);
+ test_cipher_speed("adiantum(xchacha20,aes)", DECRYPT, sec, NULL,
+ 0, speed_template_32);
+ break;
+
case 300:
if (alg) {
test_hash_speed(alg, sec, generic_hash_speed_template);
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 665911c24786..0f684a414acb 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -2404,6 +2404,18 @@ static int alg_test_null(const struct alg_test_desc *desc,
/* Please keep this list sorted by algorithm name. */
static const struct alg_test_desc alg_test_descs[] = {
{
+ .alg = "adiantum(xchacha12,aes)",
+ .test = alg_test_skcipher,
+ .suite = {
+ .cipher = __VECS(adiantum_xchacha12_aes_tv_template)
+ },
+ }, {
+ .alg = "adiantum(xchacha20,aes)",
+ .test = alg_test_skcipher,
+ .suite = {
+ .cipher = __VECS(adiantum_xchacha20_aes_tv_template)
+ },
+ }, {
.alg = "aegis128",
.test = alg_test_aead,
.suite = {
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index 50ea1f2705c7..e7e56a8febbc 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -33381,6 +33381,467 @@ static const struct cipher_testvec xchacha12_tv_template[] = {
},
};
+/* Adiantum test vectors from https://github.com/google/adiantum */
+static const struct cipher_testvec adiantum_xchacha12_aes_tv_template[] = {
+ {
+ .key = "\x9e\xeb\xb2\x49\x3c\x1c\xf5\xf4"
+ "\x6a\x99\xc2\xc4\xdf\xb1\xf4\xdd"
+ "\x75\x20\x57\xea\x2c\x4f\xcd\xb2"
+ "\xa5\x3d\x7b\x49\x1e\xab\xfd\x0f",
+ .klen = 32,
+ .iv = "\xdf\x63\xd4\xab\xd2\x49\xf3\xd8"
+ "\x33\x81\x37\x60\x7d\xfa\x73\x08"
+ "\xd8\x49\x6d\x80\xe8\x2f\x62\x54"
+ "\xeb\x0e\xa9\x39\x5b\x45\x7f\x8a",
+ .ptext = "\x67\xc9\xf2\x30\x84\x41\x8e\x43"
+ "\xfb\xf3\xb3\x3e\x79\x36\x7f\xe8",
+ .ctext = "\x6d\x32\x86\x18\x67\x86\x0f\x3f"
+ "\x96\x7c\x9d\x28\x0d\x53\xec\x9f",
+ .len = 16,
+ .also_non_np = 1,
+ .np = 2,
+ .tap = { 14, 2 },
+ }, {
+ .key = "\x36\x2b\x57\x97\xf8\x5d\xcd\x99"
+ "\x5f\x1a\x5a\x44\x1d\x92\x0f\x27"
+ "\xcc\x16\xd7\x2b\x85\x63\x99\xd3"
+ "\xba\x96\xa1\xdb\xd2\x60\x68\xda",
+ .klen = 32,
+ .iv = "\xef\x58\x69\xb1\x2c\x5e\x9a\x47"
+ "\x24\xc1\xb1\x69\xe1\x12\x93\x8f"
+ "\x43\x3d\x6d\x00\xdb\x5e\xd8\xd9"
+ "\x12\x9a\xfe\xd9\xff\x2d\xaa\xc4",
+ .ptext = "\x5e\xa8\x68\x19\x85\x98\x12\x23"
+ "\x26\x0a\xcc\xdb\x0a\x04\xb9\xdf"
+ "\x4d\xb3\x48\x7b\xb0\xe3\xc8\x19"
+ "\x43\x5a\x46\x06\x94\x2d\xf2",
+ .ctext = "\xc7\xc6\xf1\x73\x8f\xc4\xff\x4a"
+ "\x39\xbe\x78\xbe\x8d\x28\xc8\x89"
+ "\x46\x63\xe7\x0c\x7d\x87\xe8\x4e"
+ "\xc9\x18\x7b\xbe\x18\x60\x50",
+ .len = 31,
+ }, {
+ .key = "\xa5\x28\x24\x34\x1a\x3c\xd8\xf7"
+ "\x05\x91\x8f\xee\x85\x1f\x35\x7f"
+ "\x80\x3d\xfc\x9b\x94\xf6\xfc\x9e"
+ "\x19\x09\x00\xa9\x04\x31\x4f\x11",
+ .klen = 32,
+ .iv = "\xa1\xba\x49\x95\xff\x34\x6d\xb8"
+ "\xcd\x87\x5d\x5e\xfd\xea\x85\xdb"
+ "\x8a\x7b\x5e\xb2\x5d\x57\xdd\x62"
+ "\xac\xa9\x8c\x41\x42\x94\x75\xb7",
+ .ptext = "\x69\xb4\xe8\x8c\x37\xe8\x67\x82"
+ "\xf1\xec\x5d\x04\xe5\x14\x91\x13"
+ "\xdf\xf2\x87\x1b\x69\x81\x1d\x71"
+ "\x70\x9e\x9c\x3b\xde\x49\x70\x11"
+ "\xa0\xa3\xdb\x0d\x54\x4f\x66\x69"
+ "\xd7\xdb\x80\xa7\x70\x92\x68\xce"
+ "\x81\x04\x2c\xc6\xab\xae\xe5\x60"
+ "\x15\xe9\x6f\xef\xaa\x8f\xa7\xa7"
+ "\x63\x8f\xf2\xf0\x77\xf1\xa8\xea"
+ "\xe1\xb7\x1f\x9e\xab\x9e\x4b\x3f"
+ "\x07\x87\x5b\x6f\xcd\xa8\xaf\xb9"
+ "\xfa\x70\x0b\x52\xb8\xa8\xa7\x9e"
+ "\x07\x5f\xa6\x0e\xb3\x9b\x79\x13"
+ "\x79\xc3\x3e\x8d\x1c\x2c\x68\xc8"
+ "\x51\x1d\x3c\x7b\x7d\x79\x77\x2a"
+ "\x56\x65\xc5\x54\x23\x28\xb0\x03",
+ .ctext = "\x9e\x16\xab\xed\x4b\xa7\x42\x5a"
+ "\xc6\xfb\x4e\x76\xff\xbe\x03\xa0"
+ "\x0f\xe3\xad\xba\xe4\x98\x2b\x0e"
+ "\x21\x48\xa0\xb8\x65\x48\x27\x48"
+ "\x84\x54\x54\xb2\x9a\x94\x7b\xe6"
+ "\x4b\x29\xe9\xcf\x05\x91\x80\x1a"
+ "\x3a\xf3\x41\x96\x85\x1d\x9f\x74"
+ "\x51\x56\x63\xfa\x7c\x28\x85\x49"
+ "\xf7\x2f\xf9\xf2\x18\x46\xf5\x33"
+ "\x80\xa3\x3c\xce\xb2\x57\x93\xf5"
+ "\xae\xbd\xa9\xf5\x7b\x30\xc4\x93"
+ "\x66\xe0\x30\x77\x16\xe4\xa0\x31"
+ "\xba\x70\xbc\x68\x13\xf5\xb0\x9a"
+ "\xc1\xfc\x7e\xfe\x55\x80\x5c\x48"
+ "\x74\xa6\xaa\xa3\xac\xdc\xc2\xf5"
+ "\x8d\xde\x34\x86\x78\x60\x75\x8d",
+ .len = 128,
+ .also_non_np = 1,
+ .np = 4,
+ .tap = { 104, 16, 4, 4 },
+ }, {
+ .key = "\xd3\x81\x72\x18\x23\xff\x6f\x4a"
+ "\x25\x74\x29\x0d\x51\x8a\x0e\x13"
+ "\xc1\x53\x5d\x30\x8d\xee\x75\x0d"
+ "\x14\xd6\x69\xc9\x15\xa9\x0c\x60",
+ .klen = 32,
+ .iv = "\x65\x9b\xd4\xa8\x7d\x29\x1d\xf4"
+ "\xc4\xd6\x9b\x6a\x28\xab\x64\xe2"
+ "\x62\x81\x97\xc5\x81\xaa\xf9\x44"
+ "\xc1\x72\x59\x82\xaf\x16\xc8\x2c",
+ .ptext = "\xc7\x6b\x52\x6a\x10\xf0\xcc\x09"
+ "\xc1\x12\x1d\x6d\x21\xa6\x78\xf5"
+ "\x05\xa3\x69\x60\x91\x36\x98\x57"
+ "\xba\x0c\x14\xcc\xf3\x2d\x73\x03"
+ "\xc6\xb2\x5f\xc8\x16\x27\x37\x5d"
+ "\xd0\x0b\x87\xb2\x50\x94\x7b\x58"
+ "\x04\xf4\xe0\x7f\x6e\x57\x8e\xc9"
+ "\x41\x84\xc1\xb1\x7e\x4b\x91\x12"
+ "\x3a\x8b\x5d\x50\x82\x7b\xcb\xd9"
+ "\x9a\xd9\x4e\x18\x06\x23\x9e\xd4"
+ "\xa5\x20\x98\xef\xb5\xda\xe5\xc0"
+ "\x8a\x6a\x83\x77\x15\x84\x1e\xae"
+ "\x78\x94\x9d\xdf\xb7\xd1\xea\x67"
+ "\xaa\xb0\x14\x15\xfa\x67\x21\x84"
+ "\xd3\x41\x2a\xce\xba\x4b\x4a\xe8"
+ "\x95\x62\xa9\x55\xf0\x80\xad\xbd"
+ "\xab\xaf\xdd\x4f\xa5\x7c\x13\x36"
+ "\xed\x5e\x4f\x72\xad\x4b\xf1\xd0"
+ "\x88\x4e\xec\x2c\x88\x10\x5e\xea"
+ "\x12\xc0\x16\x01\x29\xa3\xa0\x55"
+ "\xaa\x68\xf3\xe9\x9d\x3b\x0d\x3b"
+ "\x6d\xec\xf8\xa0\x2d\xf0\x90\x8d"
+ "\x1c\xe2\x88\xd4\x24\x71\xf9\xb3"
+ "\xc1\x9f\xc5\xd6\x76\x70\xc5\x2e"
+ "\x9c\xac\xdb\x90\xbd\x83\x72\xba"
+ "\x6e\xb5\xa5\x53\x83\xa9\xa5\xbf"
+ "\x7d\x06\x0e\x3c\x2a\xd2\x04\xb5"
+ "\x1e\x19\x38\x09\x16\xd2\x82\x1f"
+ "\x75\x18\x56\xb8\x96\x0b\xa6\xf9"
+ "\xcf\x62\xd9\x32\x5d\xa9\xd7\x1d"
+ "\xec\xe4\xdf\x1b\xbe\xf1\x36\xee"
+ "\xe3\x7b\xb5\x2f\xee\xf8\x53\x3d"
+ "\x6a\xb7\x70\xa9\xfc\x9c\x57\x25"
+ "\xf2\x89\x10\xd3\xb8\xa8\x8c\x30"
+ "\xae\x23\x4f\x0e\x13\x66\x4f\xe1"
+ "\xb6\xc0\xe4\xf8\xef\x93\xbd\x6e"
+ "\x15\x85\x6b\xe3\x60\x81\x1d\x68"
+ "\xd7\x31\x87\x89\x09\xab\xd5\x96"
+ "\x1d\xf3\x6d\x67\x80\xca\x07\x31"
+ "\x5d\xa7\xe4\xfb\x3e\xf2\x9b\x33"
+ "\x52\x18\xc8\x30\xfe\x2d\xca\x1e"
+ "\x79\x92\x7a\x60\x5c\xb6\x58\x87"
+ "\xa4\x36\xa2\x67\x92\x8b\xa4\xb7"
+ "\xf1\x86\xdf\xdc\xc0\x7e\x8f\x63"
+ "\xd2\xa2\xdc\x78\xeb\x4f\xd8\x96"
+ "\x47\xca\xb8\x91\xf9\xf7\x94\x21"
+ "\x5f\x9a\x9f\x5b\xb8\x40\x41\x4b"
+ "\x66\x69\x6a\x72\xd0\xcb\x70\xb7"
+ "\x93\xb5\x37\x96\x05\x37\x4f\xe5"
+ "\x8c\xa7\x5a\x4e\x8b\xb7\x84\xea"
+ "\xc7\xfc\x19\x6e\x1f\x5a\xa1\xac"
+ "\x18\x7d\x52\x3b\xb3\x34\x62\x99"
+ "\xe4\x9e\x31\x04\x3f\xc0\x8d\x84"
+ "\x17\x7c\x25\x48\x52\x67\x11\x27"
+ "\x67\xbb\x5a\x85\xca\x56\xb2\x5c"
+ "\xe6\xec\xd5\x96\x3d\x15\xfc\xfb"
+ "\x22\x25\xf4\x13\xe5\x93\x4b\x9a"
+ "\x77\xf1\x52\x18\xfa\x16\x5e\x49"
+ "\x03\x45\xa8\x08\xfa\xb3\x41\x92"
+ "\x79\x50\x33\xca\xd0\xd7\x42\x55"
+ "\xc3\x9a\x0c\x4e\xd9\xa4\x3c\x86"
+ "\x80\x9f\x53\xd1\xa4\x2e\xd1\xbc"
+ "\xf1\x54\x6e\x93\xa4\x65\x99\x8e"
+ "\xdf\x29\xc0\x64\x63\x07\xbb\xea",
+ .ctext = "\x15\x97\xd0\x86\x18\x03\x9c\x51"
+ "\xc5\x11\x36\x62\x13\x92\xe6\x73"
+ "\x29\x79\xde\xa1\x00\x3e\x08\x64"
+ "\x17\x1a\xbc\xd5\xfe\x33\x0e\x0c"
+ "\x7c\x94\xa7\xc6\x3c\xbe\xac\xa2"
+ "\x89\xe6\xbc\xdf\x0c\x33\x27\x42"
+ "\x46\x73\x2f\xba\x4e\xa6\x46\x8f"
+ "\xe4\xee\x39\x63\x42\x65\xa3\x88"
+ "\x7a\xad\x33\x23\xa9\xa7\x20\x7f"
+ "\x0b\xe6\x6a\xc3\x60\xda\x9e\xb4"
+ "\xd6\x07\x8a\x77\x26\xd1\xab\x44"
+ "\x99\x55\x03\x5e\xed\x8d\x7b\xbd"
+ "\xc8\x21\xb7\x21\x30\x3f\xc0\xb5"
+ "\xc8\xec\x6c\x23\xa6\xa3\x6d\xf1"
+ "\x30\x0a\xd0\xa6\xa9\x28\x69\xae"
+ "\x2a\xe6\x54\xac\x82\x9d\x6a\x95"
+ "\x6f\x06\x44\xc5\x5a\x77\x6e\xec"
+ "\xf8\xf8\x63\xb2\xe6\xaa\xbd\x8e"
+ "\x0e\x8a\x62\x00\x03\xc8\x84\xdd"
+ "\x47\x4a\xc3\x55\xba\xb7\xe7\xdf"
+ "\x08\xbf\x62\xf5\xe8\xbc\xb6\x11"
+ "\xe4\xcb\xd0\x66\x74\x32\xcf\xd4"
+ "\xf8\x51\x80\x39\x14\x05\x12\xdb"
+ "\x87\x93\xe2\x26\x30\x9c\x3a\x21"
+ "\xe5\xd0\x38\x57\x80\x15\xe4\x08"
+ "\x58\x05\x49\x7d\xe6\x92\x77\x70"
+ "\xfb\x1e\x2d\x6a\x84\x00\xc8\x68"
+ "\xf7\x1a\xdd\xf0\x7b\x38\x1e\xd8"
+ "\x2c\x78\x78\x61\xcf\xe3\xde\x69"
+ "\x1f\xd5\x03\xd5\x1a\xb4\xcf\x03"
+ "\xc8\x7a\x70\x68\x35\xb4\xf6\xbe"
+ "\x90\x62\xb2\x28\x99\x86\xf5\x44"
+ "\x99\xeb\x31\xcf\xca\xdf\xd0\x21"
+ "\xd6\x60\xf7\x0f\x40\xb4\x80\xb7"
+ "\xab\xe1\x9b\x45\xba\x66\xda\xee"
+ "\xdd\x04\x12\x40\x98\xe1\x69\xe5"
+ "\x2b\x9c\x59\x80\xe7\x7b\xcc\x63"
+ "\xa6\xc0\x3a\xa9\xfe\x8a\xf9\x62"
+ "\x11\x34\x61\x94\x35\xfe\xf2\x99"
+ "\xfd\xee\x19\xea\x95\xb6\x12\xbf"
+ "\x1b\xdf\x02\x1a\xcc\x3e\x7e\x65"
+ "\x78\x74\x10\x50\x29\x63\x28\xea"
+ "\x6b\xab\xd4\x06\x4d\x15\x24\x31"
+ "\xc7\x0a\xc9\x16\xb6\x48\xf0\xbf"
+ "\x49\xdb\x68\x71\x31\x8f\x87\xe2"
+ "\x13\x05\x64\xd6\x22\x0c\xf8\x36"
+ "\x84\x24\x3e\x69\x5e\xb8\x9e\x16"
+ "\x73\x6c\x83\x1e\xe0\x9f\x9e\xba"
+ "\xe5\x59\x21\x33\x1b\xa9\x26\xc2"
+ "\xc7\xd9\x30\x73\xb6\xa6\x73\x82"
+ "\x19\xfa\x44\x4d\x40\x8b\x69\x04"
+ "\x94\x74\xea\x6e\xb3\x09\x47\x01"
+ "\x2a\xb9\x78\x34\x43\x11\xed\xd6"
+ "\x8c\x95\x65\x1b\x85\x67\xa5\x40"
+ "\xac\x9c\x05\x4b\x57\x4a\xa9\x96"
+ "\x0f\xdd\x4f\xa1\xe0\xcf\x6e\xc7"
+ "\x1b\xed\xa2\xb4\x56\x8c\x09\x6e"
+ "\xa6\x65\xd7\x55\x81\xb7\xed\x11"
+ "\x9b\x40\x75\xa8\x6b\x56\xaf\x16"
+ "\x8b\x3d\xf4\xcb\xfe\xd5\x1d\x3d"
+ "\x85\xc2\xc0\xde\x43\x39\x4a\x96"
+ "\xba\x88\x97\xc0\xd6\x00\x0e\x27"
+ "\x21\xb0\x21\x52\xba\xa7\x37\xaa"
+ "\xcc\xbf\x95\xa8\xf4\xd0\x91\xf6",
+ .len = 512,
+ .also_non_np = 1,
+ .np = 2,
+ .tap = { 144, 368 },
+ }
+};
+
+/* Adiantum with XChaCha20 instead of XChaCha12 */
+/* Test vectors from https://github.com/google/adiantum */
+static const struct cipher_testvec adiantum_xchacha20_aes_tv_template[] = {
+ {
+ .key = "\x9e\xeb\xb2\x49\x3c\x1c\xf5\xf4"
+ "\x6a\x99\xc2\xc4\xdf\xb1\xf4\xdd"
+ "\x75\x20\x57\xea\x2c\x4f\xcd\xb2"
+ "\xa5\x3d\x7b\x49\x1e\xab\xfd\x0f",
+ .klen = 32,
+ .iv = "\xdf\x63\xd4\xab\xd2\x49\xf3\xd8"
+ "\x33\x81\x37\x60\x7d\xfa\x73\x08"
+ "\xd8\x49\x6d\x80\xe8\x2f\x62\x54"
+ "\xeb\x0e\xa9\x39\x5b\x45\x7f\x8a",
+ .ptext = "\x67\xc9\xf2\x30\x84\x41\x8e\x43"
+ "\xfb\xf3\xb3\x3e\x79\x36\x7f\xe8",
+ .ctext = "\xf6\x78\x97\xd6\xaa\x94\x01\x27"
+ "\x2e\x4d\x83\xe0\x6e\x64\x9a\xdf",
+ .len = 16,
+ .also_non_np = 1,
+ .np = 3,
+ .tap = { 5, 2, 9 },
+ }, {
+ .key = "\x36\x2b\x57\x97\xf8\x5d\xcd\x99"
+ "\x5f\x1a\x5a\x44\x1d\x92\x0f\x27"
+ "\xcc\x16\xd7\x2b\x85\x63\x99\xd3"
+ "\xba\x96\xa1\xdb\xd2\x60\x68\xda",
+ .klen = 32,
+ .iv = "\xef\x58\x69\xb1\x2c\x5e\x9a\x47"
+ "\x24\xc1\xb1\x69\xe1\x12\x93\x8f"
+ "\x43\x3d\x6d\x00\xdb\x5e\xd8\xd9"
+ "\x12\x9a\xfe\xd9\xff\x2d\xaa\xc4",
+ .ptext = "\x5e\xa8\x68\x19\x85\x98\x12\x23"
+ "\x26\x0a\xcc\xdb\x0a\x04\xb9\xdf"
+ "\x4d\xb3\x48\x7b\xb0\xe3\xc8\x19"
+ "\x43\x5a\x46\x06\x94\x2d\xf2",
+ .ctext = "\x4b\xb8\x90\x10\xdf\x7f\x64\x08"
+ "\x0e\x14\x42\x5f\x00\x74\x09\x36"
+ "\x57\x72\xb5\xfd\xb5\x5d\xb8\x28"
+ "\x0c\x04\x91\x14\x91\xe9\x37",
+ .len = 31,
+ .also_non_np = 1,
+ .np = 2,
+ .tap = { 16, 15 },
+ }, {
+ .key = "\xa5\x28\x24\x34\x1a\x3c\xd8\xf7"
+ "\x05\x91\x8f\xee\x85\x1f\x35\x7f"
+ "\x80\x3d\xfc\x9b\x94\xf6\xfc\x9e"
+ "\x19\x09\x00\xa9\x04\x31\x4f\x11",
+ .klen = 32,
+ .iv = "\xa1\xba\x49\x95\xff\x34\x6d\xb8"
+ "\xcd\x87\x5d\x5e\xfd\xea\x85\xdb"
+ "\x8a\x7b\x5e\xb2\x5d\x57\xdd\x62"
+ "\xac\xa9\x8c\x41\x42\x94\x75\xb7",
+ .ptext = "\x69\xb4\xe8\x8c\x37\xe8\x67\x82"
+ "\xf1\xec\x5d\x04\xe5\x14\x91\x13"
+ "\xdf\xf2\x87\x1b\x69\x81\x1d\x71"
+ "\x70\x9e\x9c\x3b\xde\x49\x70\x11"
+ "\xa0\xa3\xdb\x0d\x54\x4f\x66\x69"
+ "\xd7\xdb\x80\xa7\x70\x92\x68\xce"
+ "\x81\x04\x2c\xc6\xab\xae\xe5\x60"
+ "\x15\xe9\x6f\xef\xaa\x8f\xa7\xa7"
+ "\x63\x8f\xf2\xf0\x77\xf1\xa8\xea"
+ "\xe1\xb7\x1f\x9e\xab\x9e\x4b\x3f"
+ "\x07\x87\x5b\x6f\xcd\xa8\xaf\xb9"
+ "\xfa\x70\x0b\x52\xb8\xa8\xa7\x9e"
+ "\x07\x5f\xa6\x0e\xb3\x9b\x79\x13"
+ "\x79\xc3\x3e\x8d\x1c\x2c\x68\xc8"
+ "\x51\x1d\x3c\x7b\x7d\x79\x77\x2a"
+ "\x56\x65\xc5\x54\x23\x28\xb0\x03",
+ .ctext = "\xb1\x8b\xa0\x05\x77\xa8\x4d\x59"
+ "\x1b\x8e\x21\xfc\x3a\x49\xfa\xd4"
+ "\xeb\x36\xf3\xc4\xdf\xdc\xae\x67"
+ "\x07\x3f\x70\x0e\xe9\x66\xf5\x0c"
+ "\x30\x4d\x66\xc9\xa4\x2f\x73\x9c"
+ "\x13\xc8\x49\x44\xcc\x0a\x90\x9d"
+ "\x7c\xdd\x19\x3f\xea\x72\x8d\x58"
+ "\xab\xe7\x09\x2c\xec\xb5\x44\xd2"
+ "\xca\xa6\x2d\x7a\x5c\x9c\x2b\x15"
+ "\xec\x2a\xa6\x69\x91\xf9\xf3\x13"
+ "\xf7\x72\xc1\xc1\x40\xd5\xe1\x94"
+ "\xf4\x29\xa1\x3e\x25\x02\xa8\x3e"
+ "\x94\xc1\x91\x14\xa1\x14\xcb\xbe"
+ "\x67\x4c\xb9\x38\xfe\xa7\xaa\x32"
+ "\x29\x62\x0d\xb2\xf6\x3c\x58\x57"
+ "\xc1\xd5\x5a\xbb\xd6\xa6\x2a\xe5",
+ .len = 128,
+ .also_non_np = 1,
+ .np = 4,
+ .tap = { 112, 7, 8, 1 },
+ }, {
+ .key = "\xd3\x81\x72\x18\x23\xff\x6f\x4a"
+ "\x25\x74\x29\x0d\x51\x8a\x0e\x13"
+ "\xc1\x53\x5d\x30\x8d\xee\x75\x0d"
+ "\x14\xd6\x69\xc9\x15\xa9\x0c\x60",
+ .klen = 32,
+ .iv = "\x65\x9b\xd4\xa8\x7d\x29\x1d\xf4"
+ "\xc4\xd6\x9b\x6a\x28\xab\x64\xe2"
+ "\x62\x81\x97\xc5\x81\xaa\xf9\x44"
+ "\xc1\x72\x59\x82\xaf\x16\xc8\x2c",
+ .ptext = "\xc7\x6b\x52\x6a\x10\xf0\xcc\x09"
+ "\xc1\x12\x1d\x6d\x21\xa6\x78\xf5"
+ "\x05\xa3\x69\x60\x91\x36\x98\x57"
+ "\xba\x0c\x14\xcc\xf3\x2d\x73\x03"
+ "\xc6\xb2\x5f\xc8\x16\x27\x37\x5d"
+ "\xd0\x0b\x87\xb2\x50\x94\x7b\x58"
+ "\x04\xf4\xe0\x7f\x6e\x57\x8e\xc9"
+ "\x41\x84\xc1\xb1\x7e\x4b\x91\x12"
+ "\x3a\x8b\x5d\x50\x82\x7b\xcb\xd9"
+ "\x9a\xd9\x4e\x18\x06\x23\x9e\xd4"
+ "\xa5\x20\x98\xef\xb5\xda\xe5\xc0"
+ "\x8a\x6a\x83\x77\x15\x84\x1e\xae"
+ "\x78\x94\x9d\xdf\xb7\xd1\xea\x67"
+ "\xaa\xb0\x14\x15\xfa\x67\x21\x84"
+ "\xd3\x41\x2a\xce\xba\x4b\x4a\xe8"
+ "\x95\x62\xa9\x55\xf0\x80\xad\xbd"
+ "\xab\xaf\xdd\x4f\xa5\x7c\x13\x36"
+ "\xed\x5e\x4f\x72\xad\x4b\xf1\xd0"
+ "\x88\x4e\xec\x2c\x88\x10\x5e\xea"
+ "\x12\xc0\x16\x01\x29\xa3\xa0\x55"
+ "\xaa\x68\xf3\xe9\x9d\x3b\x0d\x3b"
+ "\x6d\xec\xf8\xa0\x2d\xf0\x90\x8d"
+ "\x1c\xe2\x88\xd4\x24\x71\xf9\xb3"
+ "\xc1\x9f\xc5\xd6\x76\x70\xc5\x2e"
+ "\x9c\xac\xdb\x90\xbd\x83\x72\xba"
+ "\x6e\xb5\xa5\x53\x83\xa9\xa5\xbf"
+ "\x7d\x06\x0e\x3c\x2a\xd2\x04\xb5"
+ "\x1e\x19\x38\x09\x16\xd2\x82\x1f"
+ "\x75\x18\x56\xb8\x96\x0b\xa6\xf9"
+ "\xcf\x62\xd9\x32\x5d\xa9\xd7\x1d"
+ "\xec\xe4\xdf\x1b\xbe\xf1\x36\xee"
+ "\xe3\x7b\xb5\x2f\xee\xf8\x53\x3d"
+ "\x6a\xb7\x70\xa9\xfc\x9c\x57\x25"
+ "\xf2\x89\x10\xd3\xb8\xa8\x8c\x30"
+ "\xae\x23\x4f\x0e\x13\x66\x4f\xe1"
+ "\xb6\xc0\xe4\xf8\xef\x93\xbd\x6e"
+ "\x15\x85\x6b\xe3\x60\x81\x1d\x68"
+ "\xd7\x31\x87\x89\x09\xab\xd5\x96"
+ "\x1d\xf3\x6d\x67\x80\xca\x07\x31"
+ "\x5d\xa7\xe4\xfb\x3e\xf2\x9b\x33"
+ "\x52\x18\xc8\x30\xfe\x2d\xca\x1e"
+ "\x79\x92\x7a\x60\x5c\xb6\x58\x87"
+ "\xa4\x36\xa2\x67\x92\x8b\xa4\xb7"
+ "\xf1\x86\xdf\xdc\xc0\x7e\x8f\x63"
+ "\xd2\xa2\xdc\x78\xeb\x4f\xd8\x96"
+ "\x47\xca\xb8\x91\xf9\xf7\x94\x21"
+ "\x5f\x9a\x9f\x5b\xb8\x40\x41\x4b"
+ "\x66\x69\x6a\x72\xd0\xcb\x70\xb7"
+ "\x93\xb5\x37\x96\x05\x37\x4f\xe5"
+ "\x8c\xa7\x5a\x4e\x8b\xb7\x84\xea"
+ "\xc7\xfc\x19\x6e\x1f\x5a\xa1\xac"
+ "\x18\x7d\x52\x3b\xb3\x34\x62\x99"
+ "\xe4\x9e\x31\x04\x3f\xc0\x8d\x84"
+ "\x17\x7c\x25\x48\x52\x67\x11\x27"
+ "\x67\xbb\x5a\x85\xca\x56\xb2\x5c"
+ "\xe6\xec\xd5\x96\x3d\x15\xfc\xfb"
+ "\x22\x25\xf4\x13\xe5\x93\x4b\x9a"
+ "\x77\xf1\x52\x18\xfa\x16\x5e\x49"
+ "\x03\x45\xa8\x08\xfa\xb3\x41\x92"
+ "\x79\x50\x33\xca\xd0\xd7\x42\x55"
+ "\xc3\x9a\x0c\x4e\xd9\xa4\x3c\x86"
+ "\x80\x9f\x53\xd1\xa4\x2e\xd1\xbc"
+ "\xf1\x54\x6e\x93\xa4\x65\x99\x8e"
+ "\xdf\x29\xc0\x64\x63\x07\xbb\xea",
+ .ctext = "\xe0\x33\xf6\xe0\xb4\xa5\xdd\x2b"
+ "\xdd\xce\xfc\x12\x1e\xfc\x2d\xf2"
+ "\x8b\xc7\xeb\xc1\xc4\x2a\xe8\x44"
+ "\x0f\x3d\x97\x19\x2e\x6d\xa2\x38"
+ "\x9d\xa6\xaa\xe1\x96\xb9\x08\xe8"
+ "\x0b\x70\x48\x5c\xed\xb5\x9b\xcb"
+ "\x8b\x40\x88\x7e\x69\x73\xf7\x16"
+ "\x71\xbb\x5b\xfc\xa3\x47\x5d\xa6"
+ "\xae\x3a\x64\xc4\xe7\xb8\xa8\xe7"
+ "\xb1\x32\x19\xdb\xe3\x01\xb8\xf0"
+ "\xa4\x86\xb4\x4c\xc2\xde\x5c\xd2"
+ "\x6c\x77\xd2\xe8\x18\xb7\x0a\xc9"
+ "\x3d\x53\xb5\xc4\x5c\xf0\x8c\x06"
+ "\xdc\x90\xe0\x74\x47\x1b\x0b\xf6"
+ "\xd2\x71\x6b\xc4\xf1\x97\x00\x2d"
+ "\x63\x57\x44\x1f\x8c\xf4\xe6\x9b"
+ "\xe0\x7a\xdd\xec\x32\x73\x42\x32"
+ "\x7f\x35\x67\x60\x0d\xcf\x10\x52"
+ "\x61\x22\x53\x8d\x8e\xbb\x33\x76"
+ "\x59\xd9\x10\xce\xdf\xef\xc0\x41"
+ "\xd5\x33\x29\x6a\xda\x46\xa4\x51"
+ "\xf0\x99\x3d\x96\x31\xdd\xb5\xcb"
+ "\x3e\x2a\x1f\xc7\x5c\x79\xd3\xc5"
+ "\x20\xa1\xb1\x39\x1b\xc6\x0a\x70"
+ "\x26\x39\x95\x07\xad\x7a\xc9\x69"
+ "\xfe\x81\xc7\x88\x08\x38\xaf\xad"
+ "\x9e\x8d\xfb\xe8\x24\x0d\x22\xb8"
+ "\x0e\xed\xbe\x37\x53\x7c\xa6\xc6"
+ "\x78\x62\xec\xa3\x59\xd9\xc6\x9d"
+ "\xb8\x0e\x69\x77\x84\x2d\x6a\x4c"
+ "\xc5\xd9\xb2\xa0\x2b\xa8\x80\xcc"
+ "\xe9\x1e\x9c\x5a\xc4\xa1\xb2\x37"
+ "\x06\x9b\x30\x32\x67\xf7\xe7\xd2"
+ "\x42\xc7\xdf\x4e\xd4\xcb\xa0\x12"
+ "\x94\xa1\x34\x85\x93\x50\x4b\x0a"
+ "\x3c\x7d\x49\x25\x01\x41\x6b\x96"
+ "\xa9\x12\xbb\x0b\xc0\xd7\xd0\x93"
+ "\x1f\x70\x38\xb8\x21\xee\xf6\xa7"
+ "\xee\xeb\xe7\x81\xa4\x13\xb4\x87"
+ "\xfa\xc1\xb0\xb5\x37\x8b\x74\xa2"
+ "\x4e\xc7\xc2\xad\x3d\x62\x3f\xf8"
+ "\x34\x42\xe5\xae\x45\x13\x63\xfe"
+ "\xfc\x2a\x17\x46\x61\xa9\xd3\x1c"
+ "\x4c\xaf\xf0\x09\x62\x26\x66\x1e"
+ "\x74\xcf\xd6\x68\x3d\x7d\xd8\xb7"
+ "\xe7\xe6\xf8\xf0\x08\x20\xf7\x47"
+ "\x1c\x52\xaa\x0f\x3e\x21\xa3\xf2"
+ "\xbf\x2f\x95\x16\xa8\xc8\xc8\x8c"
+ "\x99\x0f\x5d\xfb\xfa\x2b\x58\x8a"
+ "\x7e\xd6\x74\x02\x60\xf0\xd0\x5b"
+ "\x65\xa8\xac\xea\x8d\x68\x46\x34"
+ "\x26\x9d\x4f\xb1\x9a\x8e\xc0\x1a"
+ "\xf1\xed\xc6\x7a\x83\xfd\x8a\x57"
+ "\xf2\xe6\xe4\xba\xfc\xc6\x3c\xad"
+ "\x5b\x19\x50\x2f\x3a\xcc\x06\x46"
+ "\x04\x51\x3f\x91\x97\xf0\xd2\x07"
+ "\xe7\x93\x89\x7e\xb5\x32\x0f\x03"
+ "\xe5\x58\x9e\x74\x72\xeb\xc2\x38"
+ "\x00\x0c\x91\x72\x69\xed\x7d\x6d"
+ "\xc8\x71\xf0\xec\xff\x80\xd9\x1c"
+ "\x9e\xd2\xfa\x15\xfc\x6c\x4e\xbc"
+ "\xb1\xa6\xbd\xbd\x70\x40\xca\x20"
+ "\xb8\x78\xd2\xa3\xc6\xf3\x79\x9c"
+ "\xc7\x27\xe1\x6a\x29\xad\xa4\x03",
+ .len = 512,
+ }
+};
+
/*
* CTS (Cipher Text Stealing) mode tests
*/
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.