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Hakase
2019-05-23 12:02:56 +09:00
parent a7bf77581f
commit 64d458de91
185 changed files with 5859 additions and 2853 deletions
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crypto/evp/evp_enc.c
+67 -34
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@@ -206,7 +206,7 @@ int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
ctx->cipher = cipher;
if (ctx->provctx == NULL) {
ctx->provctx = ctx->cipher->newctx();
ctx->provctx = ctx->cipher->newctx(ossl_provider_ctx(cipher->prov));
if (ctx->provctx == NULL) {
EVPerr(EVP_F_EVP_CIPHERINIT_EX, EVP_R_INITIALIZATION_ERROR);
return 0;
@@ -338,6 +338,9 @@ int EVP_CipherInit_ex(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *cipher,
#ifndef OPENSSL_NO_ENGINE
skip_to_init:
#endif
if (ctx->cipher == NULL)
return 0;
/* we assume block size is a power of 2 in *cryptUpdate */
OPENSSL_assert(ctx->cipher->block_size == 1
|| ctx->cipher->block_size == 8
@@ -492,11 +495,6 @@ static int evp_EncryptDecryptUpdate(EVP_CIPHER_CTX *ctx,
bl = ctx->cipher->block_size;
if (inl <= 0) {
*outl = 0;
return inl == 0;
}
if (ctx->cipher->flags & EVP_CIPH_FLAG_CUSTOM_CIPHER) {
/* If block size > 1 then the cipher will have to do this check */
if (bl == 1 && is_partially_overlapping(out, in, cmpl)) {
@@ -512,6 +510,10 @@ static int evp_EncryptDecryptUpdate(EVP_CIPHER_CTX *ctx,
return 1;
}
if (inl <= 0) {
*outl = 0;
return inl == 0;
}
if (is_partially_overlapping(out + ctx->buf_len, in, cmpl)) {
EVPerr(EVP_F_EVP_ENCRYPTDECRYPTUPDATE, EVP_R_PARTIALLY_OVERLAPPING);
return 0;
@@ -587,11 +589,14 @@ int EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
inl + (blocksize == 1 ? 0 : blocksize), in,
(size_t)inl);
if (soutl > INT_MAX) {
EVPerr(EVP_F_EVP_ENCRYPTUPDATE, EVP_R_UPDATE_ERROR);
return 0;
if (ret) {
if (soutl > INT_MAX) {
EVPerr(EVP_F_EVP_ENCRYPTUPDATE, EVP_R_UPDATE_ERROR);
return 0;
}
*outl = soutl;
}
*outl = soutl;
return ret;
/* TODO(3.0): Remove legacy code below */
@@ -620,7 +625,11 @@ int EVP_EncryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
return 0;
}
if (ctx->cipher == NULL || ctx->cipher->prov == NULL)
if (ctx->cipher == NULL) {
EVPerr(EVP_F_EVP_ENCRYPTFINAL_EX, EVP_R_NO_CIPHER_SET);
return 0;
}
if (ctx->cipher->prov == NULL)
goto legacy;
blocksize = EVP_CIPHER_CTX_block_size(ctx);
@@ -633,11 +642,13 @@ int EVP_EncryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
ret = ctx->cipher->cfinal(ctx->provctx, out, &soutl,
blocksize == 1 ? 0 : blocksize);
if (soutl > INT_MAX) {
EVPerr(EVP_F_EVP_ENCRYPTFINAL_EX, EVP_R_FINAL_ERROR);
return 0;
if (ret) {
if (soutl > INT_MAX) {
EVPerr(EVP_F_EVP_ENCRYPTFINAL_EX, EVP_R_FINAL_ERROR);
return 0;
}
*outl = soutl;
}
*outl = soutl;
return ret;
@@ -695,7 +706,11 @@ int EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
return 0;
}
if (ctx->cipher == NULL || ctx->cipher->prov == NULL)
if (ctx->cipher == NULL) {
EVPerr(EVP_F_EVP_DECRYPTUPDATE, EVP_R_NO_CIPHER_SET);
return 0;
}
if (ctx->cipher->prov == NULL)
goto legacy;
blocksize = EVP_CIPHER_CTX_block_size(ctx);
@@ -726,11 +741,6 @@ int EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS))
cmpl = (cmpl + 7) / 8;
if (inl <= 0) {
*outl = 0;
return inl == 0;
}
if (ctx->cipher->flags & EVP_CIPH_FLAG_CUSTOM_CIPHER) {
if (b == 1 && is_partially_overlapping(out, in, cmpl)) {
EVPerr(EVP_F_EVP_DECRYPTUPDATE, EVP_R_PARTIALLY_OVERLAPPING);
@@ -746,6 +756,11 @@ int EVP_DecryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl,
return 1;
}
if (inl <= 0) {
*outl = 0;
return inl == 0;
}
if (ctx->flags & EVP_CIPH_NO_PADDING)
return evp_EncryptDecryptUpdate(ctx, out, outl, in, inl);
@@ -832,6 +847,10 @@ int EVP_DecryptFinal_ex(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
legacy:
*outl = 0;
if (ctx->cipher == NULL) {
EVPerr(EVP_F_EVP_DECRYPTFINAL_EX, EVP_R_NO_CIPHER_SET);
return 0;
}
if (ctx->cipher->flags & EVP_CIPH_FLAG_CUSTOM_CIPHER) {
i = ctx->cipher->do_cipher(ctx, out, NULL, 0);
@@ -949,9 +968,11 @@ int EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr)
int EVP_CIPHER_CTX_rand_key(EVP_CIPHER_CTX *ctx, unsigned char *key)
{
int kl;
if (ctx->cipher->flags & EVP_CIPH_RAND_KEY)
return EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_RAND_KEY, 0, key);
if (RAND_priv_bytes(key, EVP_CIPHER_CTX_key_length(ctx)) <= 0)
kl = EVP_CIPHER_CTX_key_length(ctx);
if (kl <= 0 || RAND_priv_bytes(key, kl) <= 0)
return 0;
return 1;
}
@@ -1022,13 +1043,17 @@ int EVP_CIPHER_CTX_copy(EVP_CIPHER_CTX *out, const EVP_CIPHER_CTX *in)
return 1;
}
static void *evp_cipher_from_dispatch(int nid, const OSSL_DISPATCH *fns,
static void *evp_cipher_from_dispatch(const OSSL_DISPATCH *fns,
OSSL_PROVIDER *prov)
{
EVP_CIPHER *cipher = NULL;
int fnciphcnt = 0, fnctxcnt = 0;
if ((cipher = EVP_CIPHER_meth_new(nid, 0, 0)) == NULL)
/*
* The legacy NID is set by EVP_CIPHER_fetch() if the name exists in
* the object database.
*/
if ((cipher = EVP_CIPHER_meth_new(0, 0, 0)) == NULL)
return NULL;
for (; fns->function_id != 0; fns++) {
@@ -1145,17 +1170,25 @@ static void evp_cipher_free(void *cipher)
EVP_CIPHER_meth_free(cipher);
}
static int evp_cipher_nid(void *vcipher)
{
EVP_CIPHER *cipher = vcipher;
return cipher->nid;
}
EVP_CIPHER *EVP_CIPHER_fetch(OPENSSL_CTX *ctx, const char *algorithm,
const char *properties)
{
return evp_generic_fetch(ctx, OSSL_OP_CIPHER, algorithm, properties,
evp_cipher_from_dispatch, evp_cipher_upref,
evp_cipher_free, evp_cipher_nid);
EVP_CIPHER *cipher =
evp_generic_fetch(ctx, OSSL_OP_CIPHER, algorithm, properties,
evp_cipher_from_dispatch, evp_cipher_upref,
evp_cipher_free);
#ifndef FIPS_MODE
/* TODO(3.x) get rid of the need for legacy NIDs */
if (cipher != NULL) {
/*
* FIPS module note: since internal fetches will be entirely
* provider based, we know that none of its code depends on legacy
* NIDs or any functionality that use them.
*/
cipher->nid = OBJ_sn2nid(algorithm);
}
#endif
return cipher;
}