Thank you very much for the quick reply. Regards, Jaya.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Marek Marcola Sent: Wednesday, September 06, 2006 3:31 PM To: openssl-users@openssl.org Subject: RE: Aes-256 /testing of AES_cbc_encrypt Hello, > > I went through FIPS-197 for AES. Now if I want to test > void AES_cbc_encrypt(const unsigned char *in, unsigned char *out, > const unsigned long length, const AES_KEY *key, > unsigned char *ivec, const int enc) function. > How should I test this function? For test vectors you may look in test/evptests.txt in OpenSSL source. For example if you will have test line like: AES-128-CBC:2B7E151628AED2A6ABF7158809CF4F3C:000102030405060708090A0B0C0 D0E0F:6BC1BEE22E409F96E93D7E117393172A:7649ABAC8119B246CEE98E9B12E9197D then to test this from command line you may run: $ perl -e 'print pack("H*","6BC1BEE22E409F96E93D7E117393172A")' | \ openssl enc -e -aes-128-cbc \ -K 2B7E151628AED2A6ABF7158809CF4F3C \ -iv 000102030405060708090A0B0C0D0E0F | \ perl -e '$a=<STDIN>; print unpack("H*",$a), "\n"' to get: 7649abac8119b246cee98e9b12e9197d8964e0b149c10b7b682e6e39aaeb731c and of course if you run: $ perl -e 'print pack("H*","7649abac8119b246cee98e9b12e9197d8964e0b149c10b7b682e6e39aaeb7 31c")'|\ openssl enc -d -aes-128-cbc \ -K 2B7E151628AED2A6ABF7158809CF4F3C \ -iv 000102030405060708090A0B0C0D0E0F | \ perl -e '$a=<STDIN>; print unpack("H*",$a), "\n"' you will get: 6bc1bee22e409f96e93d7e117393172a The same results you should get using AES_cbc_encrypt() but you should be aware that padding is not removed by this function when you decrypt data. Best regards, -- Marek Marcola <[EMAIL PROTECTED]> ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager [EMAIL PROTECTED] ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
