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codec_hmac uses hmac key

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Stephen Lombardo 2011-02-17 00:14:54 -05:00
parent f003dfad13
commit 3aefd5e5de
1 changed files with 1 additions and 1 deletions
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src/crypto.c
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@ -288,7 +288,7 @@ static int codec_key_derive(codec_ctx *ctx, cipher_ctx *c_ctx) {
static int codec_hmac(cipher_ctx *ctx, Pgno pgno, unsigned char *in, int in_sz, unsigned char *out) {
HMAC_CTX hctx;
HMAC_CTX_init(&hctx);
HMAC_Init_ex(&hctx, ctx->key, ctx->key_sz, EVP_sha1(), NULL);
HMAC_Init_ex(&hctx, ctx->hmac_key, ctx->key_sz, EVP_sha1(), NULL);
/* include the encrypted page data, initialization vector, and page number in HMAC. This will
prevent both tampering with the ciphertext, manipulation of the IV, or resequencing otherwise