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Diffstat (limited to 'lib/libfido2/src/types.h')
| -rw-r--r-- | lib/libfido2/src/types.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/lib/libfido2/src/types.h b/lib/libfido2/src/types.h new file mode 100644 index 00000000000..42ed1b7cc89 --- /dev/null +++ b/lib/libfido2/src/types.h @@ -0,0 +1,171 @@ +/* + * Copyright (c) 2018 Yubico AB. All rights reserved. + * Use of this source code is governed by a BSD-style + * license that can be found in the LICENSE file. + */ + +#ifndef _TYPES_H +#define _TYPES_H + +#include "packed.h" + +/* COSE ES256 (ECDSA over P-256 with SHA-256) public key */ +typedef struct es256_pk { + unsigned char x[32]; + unsigned char y[32]; +} es256_pk_t; + +/* COSE ES256 (ECDSA over P-256 with SHA-256) (secret) key */ +typedef struct es256_sk { + unsigned char d[32]; +} es256_sk_t; + +/* COSE RS256 (2048-bit RSA with PKCS1 padding and SHA-256) public key */ +typedef struct rs256_pk { + unsigned char n[256]; + unsigned char e[3]; +} rs256_pk_t; + +/* COSE EDDSA (ED25519) */ +typedef struct eddsa_pk { + unsigned char x[32]; +} eddsa_pk_t; + +PACKED_TYPE(fido_authdata_t, +struct fido_authdata { + unsigned char rp_id_hash[32]; /* sha256 of fido_rp.id */ + uint8_t flags; /* user present/verified */ + uint32_t sigcount; /* signature counter */ + /* actually longer */ +}) + +PACKED_TYPE(fido_attcred_raw_t, +struct fido_attcred_raw { + unsigned char aaguid[16]; /* credential's aaguid */ + uint16_t id_len; /* credential id length */ + uint8_t body[]; /* credential id + pubkey */ +}) + +typedef struct fido_attcred { + unsigned char aaguid[16]; /* credential's aaguid */ + fido_blob_t id; /* credential id */ + int type; /* credential's cose algorithm */ + union { /* credential's public key */ + es256_pk_t es256; + rs256_pk_t rs256; + eddsa_pk_t eddsa; + } pubkey; +} fido_attcred_t; + +typedef struct fido_attstmt { + fido_blob_t x5c; /* attestation certificate */ + fido_blob_t sig; /* attestation signature */ +} fido_attstmt_t; + +typedef struct fido_rp { + char *id; /* relying party id */ + char *name; /* relying party name */ +} fido_rp_t; + +typedef struct fido_user { + fido_blob_t id; /* required */ + char *icon; /* optional */ + char *name; /* optional */ + char *display_name; /* required */ +} fido_user_t; + +typedef struct fido_cred { + fido_blob_t cdh; /* client data hash */ + fido_rp_t rp; /* relying party */ + fido_user_t user; /* user entity */ + fido_blob_array_t excl; /* list of credential ids to exclude */ + fido_opt_t rk; /* resident key */ + fido_opt_t uv; /* user verification */ + int ext; /* enabled extensions */ + int type; /* cose algorithm */ + char *fmt; /* credential format */ + int authdata_ext; /* decoded extensions */ + fido_blob_t authdata_cbor; /* raw cbor payload */ + fido_authdata_t authdata; /* decoded authdata payload */ + fido_attcred_t attcred; /* returned credential (key + id) */ + fido_attstmt_t attstmt; /* attestation statement (x509 + sig) */ +} fido_cred_t; + +typedef struct _fido_assert_stmt { + fido_blob_t id; /* credential id */ + fido_user_t user; /* user attributes */ + fido_blob_t hmac_secret_enc; /* hmac secret, encrypted */ + fido_blob_t hmac_secret; /* hmac secret */ + int authdata_ext; /* decoded extensions */ + fido_blob_t authdata_cbor; /* raw cbor payload */ + fido_authdata_t authdata; /* decoded authdata payload */ + fido_blob_t sig; /* signature of cdh + authdata */ +} fido_assert_stmt; + +typedef struct fido_assert { + char *rp_id; /* relying party id */ + fido_blob_t cdh; /* client data hash */ + fido_blob_t hmac_salt; /* optional hmac-secret salt */ + fido_blob_array_t allow_list; /* list of allowed credentials */ + fido_opt_t up; /* user presence */ + fido_opt_t uv; /* user verification */ + int ext; /* enabled extensions */ + fido_assert_stmt *stmt; /* array of expected assertions */ + size_t stmt_cnt; /* number of allocated assertions */ + size_t stmt_len; /* number of received assertions */ +} fido_assert_t; + +typedef struct fido_opt_array { + char **name; + bool *value; + size_t len; +} fido_opt_array_t; + +typedef struct fido_str_array { + char **ptr; + size_t len; +} fido_str_array_t; + +typedef struct fido_byte_array { + uint8_t *ptr; + size_t len; +} fido_byte_array_t; + +typedef struct fido_cbor_info { + fido_str_array_t versions; /* supported versions: fido2|u2f */ + fido_str_array_t extensions; /* list of supported extensions */ + unsigned char aaguid[16]; /* aaguid */ + fido_opt_array_t options; /* list of supported options */ + uint64_t maxmsgsiz; /* maximum message size */ + fido_byte_array_t protocols; /* supported pin protocols */ +} fido_cbor_info_t; + +typedef struct fido_dev_info { + char *path; /* device path */ + int16_t vendor_id; /* 2-byte vendor id */ + int16_t product_id; /* 2-byte product id */ + char *manufacturer; /* manufacturer string */ + char *product; /* product string */ +} fido_dev_info_t; + +PACKED_TYPE(fido_ctap_info_t, +/* defined in section 8.1.9.1.3 (CTAPHID_INIT) of the fido2 ctap spec */ +struct fido_ctap_info { + uint64_t nonce; /* echoed nonce */ + uint32_t cid; /* channel id */ + uint8_t protocol; /* ctaphid protocol id */ + uint8_t major; /* major version number */ + uint8_t minor; /* minor version number */ + uint8_t build; /* build version number */ + uint8_t flags; /* capabilities flags; see FIDO_CAP_* */ +}) + +typedef struct fido_dev { + uint64_t nonce; /* issued nonce */ + fido_ctap_info_t attr; /* device attributes */ + uint32_t cid; /* assigned channel id */ + void *io_handle; /* abstract i/o handle */ + fido_dev_io_t io; /* i/o functions & data */ +} fido_dev_t; + +#endif /* !_TYPES_H */ |