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path: root/openssl/crypto/evp/e_aes.c
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Diffstat (limited to 'openssl/crypto/evp/e_aes.c')
-rw-r--r--openssl/crypto/evp/e_aes.c61
1 files changed, 58 insertions, 3 deletions
diff --git a/openssl/crypto/evp/e_aes.c b/openssl/crypto/evp/e_aes.c
index c7869b69e..07bf83a60 100644
--- a/openssl/crypto/evp/e_aes.c
+++ b/openssl/crypto/evp/e_aes.c
@@ -808,6 +808,28 @@ static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
/* Extra padding: tag appended to record */
return EVP_GCM_TLS_TAG_LEN;
+ case EVP_CTRL_COPY:
+ {
+ EVP_CIPHER_CTX *out = ptr;
+ EVP_AES_GCM_CTX *gctx_out = out->cipher_data;
+ if (gctx->gcm.key)
+ {
+ if (gctx->gcm.key != &gctx->ks)
+ return 0;
+ gctx_out->gcm.key = &gctx_out->ks;
+ }
+ if (gctx->iv == c->iv)
+ gctx_out->iv = out->iv;
+ else
+ {
+ gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
+ if (!gctx_out->iv)
+ return 0;
+ memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
+ }
+ return 1;
+ }
+
default:
return -1;
@@ -1032,7 +1054,8 @@ static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
#define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
- | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT)
+ | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
+ | EVP_CIPH_CUSTOM_COPY)
BLOCK_CIPHER_custom(NID_aes,128,1,12,gcm,GCM,
EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
@@ -1044,7 +1067,25 @@ BLOCK_CIPHER_custom(NID_aes,256,1,12,gcm,GCM,
static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
{
EVP_AES_XTS_CTX *xctx = c->cipher_data;
- if (type != EVP_CTRL_INIT)
+ if (type == EVP_CTRL_COPY)
+ {
+ EVP_CIPHER_CTX *out = ptr;
+ EVP_AES_XTS_CTX *xctx_out = out->cipher_data;
+ if (xctx->xts.key1)
+ {
+ if (xctx->xts.key1 != &xctx->ks1)
+ return 0;
+ xctx_out->xts.key1 = &xctx_out->ks1;
+ }
+ if (xctx->xts.key2)
+ {
+ if (xctx->xts.key2 != &xctx->ks2)
+ return 0;
+ xctx_out->xts.key2 = &xctx_out->ks2;
+ }
+ return 1;
+ }
+ else if (type != EVP_CTRL_INIT)
return -1;
/* key1 and key2 are used as an indicator both key and IV are set */
xctx->xts.key1 = NULL;
@@ -1153,7 +1194,8 @@ static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
#define aes_xts_cleanup NULL
#define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
- | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT)
+ | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
+ | EVP_CIPH_CUSTOM_COPY)
BLOCK_CIPHER_custom(NID_aes,128,1,16,xts,XTS,EVP_CIPH_FLAG_FIPS|XTS_FLAGS)
BLOCK_CIPHER_custom(NID_aes,256,1,16,xts,XTS,EVP_CIPH_FLAG_FIPS|XTS_FLAGS)
@@ -1203,6 +1245,19 @@ static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
cctx->len_set = 0;
return 1;
+ case EVP_CTRL_COPY:
+ {
+ EVP_CIPHER_CTX *out = ptr;
+ EVP_AES_CCM_CTX *cctx_out = out->cipher_data;
+ if (cctx->ccm.key)
+ {
+ if (cctx->ccm.key != &cctx->ks)
+ return 0;
+ cctx_out->ccm.key = &cctx_out->ks;
+ }
+ return 1;
+ }
+
default:
return -1;