diff options
Diffstat (limited to 'indra/llmessage/llblowfishcipher.cpp')
| -rw-r--r-- | indra/llmessage/llblowfishcipher.cpp | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/indra/llmessage/llblowfishcipher.cpp b/indra/llmessage/llblowfishcipher.cpp index 0b5025a422..949d4cc0c7 100644 --- a/indra/llmessage/llblowfishcipher.cpp +++ b/indra/llmessage/llblowfishcipher.cpp @@ -52,24 +52,28 @@ U32 LLBlowfishCipher::encrypt(const U8* src, U32 src_len, U8* dst, U32 dst_len) if (src_len > dst_len) return 0; // OpenSSL uses "cipher contexts" to hold encryption parameters. - EVP_CIPHER_CTX context; - EVP_CIPHER_CTX_init(&context); + EVP_CIPHER_CTX *context = EVP_CIPHER_CTX_new(); + if (!context) + { + LL_WARNS() << "LLBlowfishCipher::encrypt EVP_CIPHER_CTX initiation failure" << LL_ENDL; + return 0; + } // We want a blowfish cyclic block chain cipher, but need to set // the key length before we pass in a key, so call EncryptInit // first with NULLs. - EVP_EncryptInit_ex(&context, EVP_bf_cbc(), NULL, NULL, NULL); - EVP_CIPHER_CTX_set_key_length(&context, (int)mSecretSize); + EVP_EncryptInit_ex(context, EVP_bf_cbc(), NULL, NULL, NULL); + EVP_CIPHER_CTX_set_key_length(context, (int)mSecretSize); // Complete initialization. Per EVP_EncryptInit man page, the // cipher pointer must be NULL. Apparently initial_vector must // be 8 bytes for blowfish, as this is the block size. unsigned char initial_vector[] = { 0, 0, 0, 0, 0, 0, 0, 0 }; - EVP_EncryptInit_ex(&context, NULL, NULL, mSecret, initial_vector); + EVP_EncryptInit_ex(context, NULL, NULL, mSecret, initial_vector); - int blocksize = EVP_CIPHER_CTX_block_size(&context); - int keylen = EVP_CIPHER_CTX_key_length(&context); - int iv_length = EVP_CIPHER_CTX_iv_length(&context); + int blocksize = EVP_CIPHER_CTX_block_size(context); + int keylen = EVP_CIPHER_CTX_key_length(context); + int iv_length = EVP_CIPHER_CTX_iv_length(context); LL_DEBUGS() << "LLBlowfishCipher blocksize " << blocksize << " keylen " << keylen << " iv_len " << iv_length @@ -77,7 +81,7 @@ U32 LLBlowfishCipher::encrypt(const U8* src, U32 src_len, U8* dst, U32 dst_len) int output_len = 0; int temp_len = 0; - if (!EVP_EncryptUpdate(&context, + if (!EVP_EncryptUpdate(context, dst, &output_len, src, @@ -89,18 +93,18 @@ U32 LLBlowfishCipher::encrypt(const U8* src, U32 src_len, U8* dst, U32 dst_len) // There may be some final data left to encrypt if the input is // not an exact multiple of the block size. - if (!EVP_EncryptFinal_ex(&context, (unsigned char*)(dst + output_len), &temp_len)) + if (!EVP_EncryptFinal_ex(context, (unsigned char*)(dst + output_len), &temp_len)) { LL_WARNS() << "LLBlowfishCipher::encrypt EVP_EncryptFinal failure" << LL_ENDL; goto ERROR; } output_len += temp_len; - EVP_CIPHER_CTX_cleanup(&context); + EVP_CIPHER_CTX_free(context); return output_len; ERROR: - EVP_CIPHER_CTX_cleanup(&context); + EVP_CIPHER_CTX_free(context); return 0; } |