Documentation
# AES-128-OFB128
# From NIST SP_800-38A Appendix F.4


# OFB128-AES128.Encrypt and OFB128-AES128.Decrypt 
Klen = 16
Ilen = 16
Len = 64
Key = 2b7e151628aed2a6abf7158809cf4f3c
IV = 000102030405060708090a0b0c0d0e0f
Plaintext = 6bc1bee22e409f96e93d7e117393172aae2d8a571e03ac9c9eb76fac45af8e5130c81c46a35ce411e5fbc1191a0a52eff69f2445df4f9b17ad2b417be66c3710
Ciphertext = 3b3fd92eb72dad20333449f8e83cfb4a7789508d16918f03f53c52dac54ed8259740051e9c5fecf64344f7a82260edcc304c6528f659c77866a510d9c1d6ae5e