diff options
Diffstat (limited to 'src/crypto/poly1305.c')
| -rw-r--r-- | src/crypto/poly1305.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/crypto/poly1305.c b/src/crypto/poly1305.c index a2ff970..78f4365 100644 --- a/src/crypto/poly1305.c +++ b/src/crypto/poly1305.c @@ -355,6 +355,24 @@ void poly1305_update(struct poly1305_ctx *ctx, const u8 *inp, size_t len, bool h ctx->num = rem; } +void poly1305_update_pad_fb(struct poly1305_ctx *ctx, const u8 *inp, size_t len, bool have_simd) +{ + size_t rem; + + rem = len & -(POLY1305_BLOCK_SIZE); + if (rem) { + poly1305_blocks(ctx->opaque, inp, rem, 1, have_simd); + inp += rem; + } + + rem = len & (POLY1305_BLOCK_SIZE-1); + if (rem) { + memset(ctx->data, 0, POLY1305_BLOCK_SIZE); + memcpy(ctx->data, inp, rem); + poly1305_blocks(ctx->opaque, ctx->data, POLY1305_BLOCK_SIZE, 1, have_simd); + } +} + void poly1305_finish(struct poly1305_ctx *ctx, u8 mac[POLY1305_MAC_SIZE], bool have_simd) { size_t num = ctx->num % POLY1305_BLOCK_SIZE; |