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Diffstat (limited to 'README.gost')
| -rw-r--r-- | README.gost | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/README.gost b/README.gost index abc5a9b..3a48d95 100644 --- a/README.gost +++ b/README.gost @@ -28,6 +28,8 @@ GOST 28147-89 MAC mode. Message authentication code. While most MAC It has 256-bit symmetric key and only 32 bits of MAC value (while HMAC has same key size and value size). + Really, this algorithm supports from 8 to 64 bits of the MAC value + It is implemented as combination of EVP_PKEY type and EVP_MD type. USAGE OF THESE ALGORITHMS @@ -198,11 +200,30 @@ Russian clients and RSA/DSA ciphersuites for foreign clients. implementation of this mac) and OpenSSL is clever enough to find out this. + Following mac options are supported: + + key:(32 bytes of key) + + hexkey:(64 hexadecimal digits of key) + + Engine support calculation of mac with size different from default 32 + bits. You can set mac size to any value from 1 to 8 bytes using + + -sigopt size:(number from 1 to 8 - mac size in bytes) + + (dgst command uses different EVP_PKEY_CTX for initialization and for + finalization of MAC. Option of first are set via -macopt, and for + second via -sigopt. Key should be set during initialization and size + during finalization. If you use API functions + EVP_DigestSignInit/EVP_DigestSignFinal, you can set both options at + the same time). + Encryption with GOST 28147 CFB mode openssl enc -gost89 -out encrypted-file -in plain-text-file -k <passphrase> Encryption with GOST 28147 CNT mode openssl enc -gost89-cnt -out encrypted-file -in plain-text-file -k <passphrase> - + Encryption with GOST 28147 CBC mode + openssl enc -gost89-cbc -out encrypted-file -in plain-text-file -k <passphrase> 6. Encrypting private keys and PKCS12 @@ -221,6 +242,7 @@ accessed by cipher-specific functions, only via generic evp interface openssl speed -evp gost89 openssl speed -evp gost89-cnt + openssl speed -evp gost89-cbc PROGRAMMING INTERFACES DETAILS |