memcpy(ivb, &rc5_cbc_iv[n][0], 8);
RC5_32_cbc_encrypt(buf, buf2, 8, &key, &ivb[0], RC5_DECRYPT);
if (!TEST_mem_eq(&rc5_cbc_plain[n][0], sizeof(rc5_cbc_plain[0]),
memcpy(ivb, &rc5_cbc_iv[n][0], 8);
RC5_32_cbc_encrypt(buf, buf2, 8, &key, &ivb[0], RC5_DECRYPT);
if (!TEST_mem_eq(&rc5_cbc_plain[n][0], sizeof(rc5_cbc_plain[0]),