[PATCH v2 37/41] SUNRPC: Add encryption KUnit tests for the RFC 6803 encryption types

From: Chuck Lever chuck.lever@oracle.com

Add tests for the new-to-RPCSEC Camellia cipher.

Tested-by: Scott Mayhew smayhew@redhat.com Signed-off-by: Chuck Lever chuck.lever@oracle.com --- net/sunrpc/auth_gss/gss_krb5_test.c | 400 +++++++++++++++++++++++++++++++++++ 1 file changed, 400 insertions(+)

diff --git a/net/sunrpc/auth_gss/gss_krb5_test.c b/net/sunrpc/auth_gss/gss_krb5_test.c index ea8cba8c3eb3..3d8d41aab5fe 100644 --- a/net/sunrpc/auth_gss/gss_krb5_test.c +++ b/net/sunrpc/auth_gss/gss_krb5_test.c @@ -23,10 +23,12 @@ struct gss_krb5_test_param { const char *desc; u32 enctype; u32 nfold; + u32 constant; const struct xdr_netobj *base_key; const struct xdr_netobj *Ke; const struct xdr_netobj *usage; const struct xdr_netobj *plaintext; + const struct xdr_netobj *confounder; const struct xdr_netobj *expected_result; const struct xdr_netobj *next_iv; }; @@ -999,6 +1001,399 @@ static const struct gss_krb5_test_param rfc6803_checksum_test_params[] = { KUNIT_ARRAY_PARAM(rfc6803_checksum, rfc6803_checksum_test_params, gss_krb5_get_desc);

+/* + * From RFC 6803 Section 10. Test vectors + * + * Sample encryptions (all using the default cipher state) + * + * Copyright (c) 2012 IETF Trust and the persons identified as the + * document authors. All rights reserved. + * + * Key usage values are from errata 4326 against RFC 6803. + */ + +static const struct xdr_netobj rfc6803_enc_empty_plaintext = { + .len = 0, +}; + +DEFINE_STR_XDR_NETOBJ(rfc6803_enc_1byte_plaintext, "1"); +DEFINE_STR_XDR_NETOBJ(rfc6803_enc_9byte_plaintext, "9 bytesss"); +DEFINE_STR_XDR_NETOBJ(rfc6803_enc_13byte_plaintext, "13 bytes byte"); +DEFINE_STR_XDR_NETOBJ(rfc6803_enc_30byte_plaintext, + "30 bytes bytes bytes bytes byt" +); + +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test1_confounder, + 0xb6, 0x98, 0x22, 0xa1, 0x9a, 0x6b, 0x09, 0xc0, + 0xeb, 0xc8, 0x55, 0x7d, 0x1f, 0x1b, 0x6c, 0x0a +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test1_basekey, + 0x1d, 0xc4, 0x6a, 0x8d, 0x76, 0x3f, 0x4f, 0x93, + 0x74, 0x2b, 0xcb, 0xa3, 0x38, 0x75, 0x76, 0xc3 +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test1_expected_result, + 0xc4, 0x66, 0xf1, 0x87, 0x10, 0x69, 0x92, 0x1e, + 0xdb, 0x7c, 0x6f, 0xde, 0x24, 0x4a, 0x52, 0xdb, + 0x0b, 0xa1, 0x0e, 0xdc, 0x19, 0x7b, 0xdb, 0x80, + 0x06, 0x65, 0x8c, 0xa3, 0xcc, 0xce, 0x6e, 0xb8 +); + +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test2_confounder, + 0x6f, 0x2f, 0xc3, 0xc2, 0xa1, 0x66, 0xfd, 0x88, + 0x98, 0x96, 0x7a, 0x83, 0xde, 0x95, 0x96, 0xd9 +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test2_basekey, + 0x50, 0x27, 0xbc, 0x23, 0x1d, 0x0f, 0x3a, 0x9d, + 0x23, 0x33, 0x3f, 0x1c, 0xa6, 0xfd, 0xbe, 0x7c +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test2_expected_result, + 0x84, 0x2d, 0x21, 0xfd, 0x95, 0x03, 0x11, 0xc0, + 0xdd, 0x46, 0x4a, 0x3f, 0x4b, 0xe8, 0xd6, 0xda, + 0x88, 0xa5, 0x6d, 0x55, 0x9c, 0x9b, 0x47, 0xd3, + 0xf9, 0xa8, 0x50, 0x67, 0xaf, 0x66, 0x15, 0x59, + 0xb8 +); + +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test3_confounder, + 0xa5, 0xb4, 0xa7, 0x1e, 0x07, 0x7a, 0xee, 0xf9, + 0x3c, 0x87, 0x63, 0xc1, 0x8f, 0xdb, 0x1f, 0x10 +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test3_basekey, + 0xa1, 0xbb, 0x61, 0xe8, 0x05, 0xf9, 0xba, 0x6d, + 0xde, 0x8f, 0xdb, 0xdd, 0xc0, 0x5c, 0xde, 0xa0 +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test3_expected_result, + 0x61, 0x9f, 0xf0, 0x72, 0xe3, 0x62, 0x86, 0xff, + 0x0a, 0x28, 0xde, 0xb3, 0xa3, 0x52, 0xec, 0x0d, + 0x0e, 0xdf, 0x5c, 0x51, 0x60, 0xd6, 0x63, 0xc9, + 0x01, 0x75, 0x8c, 0xcf, 0x9d, 0x1e, 0xd3, 0x3d, + 0x71, 0xdb, 0x8f, 0x23, 0xaa, 0xbf, 0x83, 0x48, + 0xa0 +); + +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test4_confounder, + 0x19, 0xfe, 0xe4, 0x0d, 0x81, 0x0c, 0x52, 0x4b, + 0x5b, 0x22, 0xf0, 0x18, 0x74, 0xc6, 0x93, 0xda +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test4_basekey, + 0x2c, 0xa2, 0x7a, 0x5f, 0xaf, 0x55, 0x32, 0x24, + 0x45, 0x06, 0x43, 0x4e, 0x1c, 0xef, 0x66, 0x76 +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test4_expected_result, + 0xb8, 0xec, 0xa3, 0x16, 0x7a, 0xe6, 0x31, 0x55, + 0x12, 0xe5, 0x9f, 0x98, 0xa7, 0xc5, 0x00, 0x20, + 0x5e, 0x5f, 0x63, 0xff, 0x3b, 0xb3, 0x89, 0xaf, + 0x1c, 0x41, 0xa2, 0x1d, 0x64, 0x0d, 0x86, 0x15, + 0xc9, 0xed, 0x3f, 0xbe, 0xb0, 0x5a, 0xb6, 0xac, + 0xb6, 0x76, 0x89, 0xb5, 0xea +); + +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test5_confounder, + 0xca, 0x7a, 0x7a, 0xb4, 0xbe, 0x19, 0x2d, 0xab, + 0xd6, 0x03, 0x50, 0x6d, 0xb1, 0x9c, 0x39, 0xe2 +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test5_basekey, + 0x78, 0x24, 0xf8, 0xc1, 0x6f, 0x83, 0xff, 0x35, + 0x4c, 0x6b, 0xf7, 0x51, 0x5b, 0x97, 0x3f, 0x43 +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test5_expected_result, + 0xa2, 0x6a, 0x39, 0x05, 0xa4, 0xff, 0xd5, 0x81, + 0x6b, 0x7b, 0x1e, 0x27, 0x38, 0x0d, 0x08, 0x09, + 0x0c, 0x8e, 0xc1, 0xf3, 0x04, 0x49, 0x6e, 0x1a, + 0xbd, 0xcd, 0x2b, 0xdc, 0xd1, 0xdf, 0xfc, 0x66, + 0x09, 0x89, 0xe1, 0x17, 0xa7, 0x13, 0xdd, 0xbb, + 0x57, 0xa4, 0x14, 0x6c, 0x15, 0x87, 0xcb, 0xa4, + 0x35, 0x66, 0x65, 0x59, 0x1d, 0x22, 0x40, 0x28, + 0x2f, 0x58, 0x42, 0xb1, 0x05, 0xa5 +); + +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test6_confounder, + 0x3c, 0xbb, 0xd2, 0xb4, 0x59, 0x17, 0x94, 0x10, + 0x67, 0xf9, 0x65, 0x99, 0xbb, 0x98, 0x92, 0x6c +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test6_basekey, + 0xb6, 0x1c, 0x86, 0xcc, 0x4e, 0x5d, 0x27, 0x57, + 0x54, 0x5a, 0xd4, 0x23, 0x39, 0x9f, 0xb7, 0x03, + 0x1e, 0xca, 0xb9, 0x13, 0xcb, 0xb9, 0x00, 0xbd, + 0x7a, 0x3c, 0x6d, 0xd8, 0xbf, 0x92, 0x01, 0x5b +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test6_expected_result, + 0x03, 0x88, 0x6d, 0x03, 0x31, 0x0b, 0x47, 0xa6, + 0xd8, 0xf0, 0x6d, 0x7b, 0x94, 0xd1, 0xdd, 0x83, + 0x7e, 0xcc, 0xe3, 0x15, 0xef, 0x65, 0x2a, 0xff, + 0x62, 0x08, 0x59, 0xd9, 0x4a, 0x25, 0x92, 0x66 +); + +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test7_confounder, + 0xde, 0xf4, 0x87, 0xfc, 0xeb, 0xe6, 0xde, 0x63, + 0x46, 0xd4, 0xda, 0x45, 0x21, 0xbb, 0xa2, 0xd2 +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test7_basekey, + 0x1b, 0x97, 0xfe, 0x0a, 0x19, 0x0e, 0x20, 0x21, + 0xeb, 0x30, 0x75, 0x3e, 0x1b, 0x6e, 0x1e, 0x77, + 0xb0, 0x75, 0x4b, 0x1d, 0x68, 0x46, 0x10, 0x35, + 0x58, 0x64, 0x10, 0x49, 0x63, 0x46, 0x38, 0x33 +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test7_expected_result, + 0x2c, 0x9c, 0x15, 0x70, 0x13, 0x3c, 0x99, 0xbf, + 0x6a, 0x34, 0xbc, 0x1b, 0x02, 0x12, 0x00, 0x2f, + 0xd1, 0x94, 0x33, 0x87, 0x49, 0xdb, 0x41, 0x35, + 0x49, 0x7a, 0x34, 0x7c, 0xfc, 0xd9, 0xd1, 0x8a, + 0x12 +); + +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test8_confounder, + 0xad, 0x4f, 0xf9, 0x04, 0xd3, 0x4e, 0x55, 0x53, + 0x84, 0xb1, 0x41, 0x00, 0xfc, 0x46, 0x5f, 0x88 +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test8_basekey, + 0x32, 0x16, 0x4c, 0x5b, 0x43, 0x4d, 0x1d, 0x15, + 0x38, 0xe4, 0xcf, 0xd9, 0xbe, 0x80, 0x40, 0xfe, + 0x8c, 0x4a, 0xc7, 0xac, 0xc4, 0xb9, 0x3d, 0x33, + 0x14, 0xd2, 0x13, 0x36, 0x68, 0x14, 0x7a, 0x05 +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test8_expected_result, + 0x9c, 0x6d, 0xe7, 0x5f, 0x81, 0x2d, 0xe7, 0xed, + 0x0d, 0x28, 0xb2, 0x96, 0x35, 0x57, 0xa1, 0x15, + 0x64, 0x09, 0x98, 0x27, 0x5b, 0x0a, 0xf5, 0x15, + 0x27, 0x09, 0x91, 0x3f, 0xf5, 0x2a, 0x2a, 0x9c, + 0x8e, 0x63, 0xb8, 0x72, 0xf9, 0x2e, 0x64, 0xc8, + 0x39 +); + +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test9_confounder, + 0xcf, 0x9b, 0xca, 0x6d, 0xf1, 0x14, 0x4e, 0x0c, + 0x0a, 0xf9, 0xb8, 0xf3, 0x4c, 0x90, 0xd5, 0x14 +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test9_basekey, + 0xb0, 0x38, 0xb1, 0x32, 0xcd, 0x8e, 0x06, 0x61, + 0x22, 0x67, 0xfa, 0xb7, 0x17, 0x00, 0x66, 0xd8, + 0x8a, 0xec, 0xcb, 0xa0, 0xb7, 0x44, 0xbf, 0xc6, + 0x0d, 0xc8, 0x9b, 0xca, 0x18, 0x2d, 0x07, 0x15 +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test9_expected_result, + 0xee, 0xec, 0x85, 0xa9, 0x81, 0x3c, 0xdc, 0x53, + 0x67, 0x72, 0xab, 0x9b, 0x42, 0xde, 0xfc, 0x57, + 0x06, 0xf7, 0x26, 0xe9, 0x75, 0xdd, 0xe0, 0x5a, + 0x87, 0xeb, 0x54, 0x06, 0xea, 0x32, 0x4c, 0xa1, + 0x85, 0xc9, 0x98, 0x6b, 0x42, 0xaa, 0xbe, 0x79, + 0x4b, 0x84, 0x82, 0x1b, 0xee +); + +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test10_confounder, + 0x64, 0x4d, 0xef, 0x38, 0xda, 0x35, 0x00, 0x72, + 0x75, 0x87, 0x8d, 0x21, 0x68, 0x55, 0xe2, 0x28 +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test10_basekey, + 0xcc, 0xfc, 0xd3, 0x49, 0xbf, 0x4c, 0x66, 0x77, + 0xe8, 0x6e, 0x4b, 0x02, 0xb8, 0xea, 0xb9, 0x24, + 0xa5, 0x46, 0xac, 0x73, 0x1c, 0xf9, 0xbf, 0x69, + 0x89, 0xb9, 0x96, 0xe7, 0xd6, 0xbf, 0xbb, 0xa7 +); +DEFINE_HEX_XDR_NETOBJ(rfc6803_enc_test10_expected_result, + 0x0e, 0x44, 0x68, 0x09, 0x85, 0x85, 0x5f, 0x2d, + 0x1f, 0x18, 0x12, 0x52, 0x9c, 0xa8, 0x3b, 0xfd, + 0x8e, 0x34, 0x9d, 0xe6, 0xfd, 0x9a, 0xda, 0x0b, + 0xaa, 0xa0, 0x48, 0xd6, 0x8e, 0x26, 0x5f, 0xeb, + 0xf3, 0x4a, 0xd1, 0x25, 0x5a, 0x34, 0x49, 0x99, + 0xad, 0x37, 0x14, 0x68, 0x87, 0xa6, 0xc6, 0x84, + 0x57, 0x31, 0xac, 0x7f, 0x46, 0x37, 0x6a, 0x05, + 0x04, 0xcd, 0x06, 0x57, 0x14, 0x74 +); + +static const struct gss_krb5_test_param rfc6803_encrypt_test_params[] = { + { + .desc = "Encrypt empty plaintext with camellia128-cts-cmac", + .enctype = ENCTYPE_CAMELLIA128_CTS_CMAC, + .constant = 0, + .base_key = &rfc6803_enc_test1_basekey, + .plaintext = &rfc6803_enc_empty_plaintext, + .confounder = &rfc6803_enc_test1_confounder, + .expected_result = &rfc6803_enc_test1_expected_result, + }, + { + .desc = "Encrypt 1 byte with camellia128-cts-cmac", + .enctype = ENCTYPE_CAMELLIA128_CTS_CMAC, + .constant = 1, + .base_key = &rfc6803_enc_test2_basekey, + .plaintext = &rfc6803_enc_1byte_plaintext, + .confounder = &rfc6803_enc_test2_confounder, + .expected_result = &rfc6803_enc_test2_expected_result, + }, + { + .desc = "Encrypt 9 bytes with camellia128-cts-cmac", + .enctype = ENCTYPE_CAMELLIA128_CTS_CMAC, + .constant = 2, + .base_key = &rfc6803_enc_test3_basekey, + .plaintext = &rfc6803_enc_9byte_plaintext, + .confounder = &rfc6803_enc_test3_confounder, + .expected_result = &rfc6803_enc_test3_expected_result, + }, + { + .desc = "Encrypt 13 bytes with camellia128-cts-cmac", + .enctype = ENCTYPE_CAMELLIA128_CTS_CMAC, + .constant = 3, + .base_key = &rfc6803_enc_test4_basekey, + .plaintext = &rfc6803_enc_13byte_plaintext, + .confounder = &rfc6803_enc_test4_confounder, + .expected_result = &rfc6803_enc_test4_expected_result, + }, + { + .desc = "Encrypt 30 bytes with camellia128-cts-cmac", + .enctype = ENCTYPE_CAMELLIA128_CTS_CMAC, + .constant = 4, + .base_key = &rfc6803_enc_test5_basekey, + .plaintext = &rfc6803_enc_30byte_plaintext, + .confounder = &rfc6803_enc_test5_confounder, + .expected_result = &rfc6803_enc_test5_expected_result, + }, + { + .desc = "Encrypt empty plaintext with camellia256-cts-cmac", + .enctype = ENCTYPE_CAMELLIA256_CTS_CMAC, + .constant = 0, + .base_key = &rfc6803_enc_test6_basekey, + .plaintext = &rfc6803_enc_empty_plaintext, + .confounder = &rfc6803_enc_test6_confounder, + .expected_result = &rfc6803_enc_test6_expected_result, + }, + { + .desc = "Encrypt 1 byte with camellia256-cts-cmac", + .enctype = ENCTYPE_CAMELLIA256_CTS_CMAC, + .constant = 1, + .base_key = &rfc6803_enc_test7_basekey, + .plaintext = &rfc6803_enc_1byte_plaintext, + .confounder = &rfc6803_enc_test7_confounder, + .expected_result = &rfc6803_enc_test7_expected_result, + }, + { + .desc = "Encrypt 9 bytes with camellia256-cts-cmac", + .enctype = ENCTYPE_CAMELLIA256_CTS_CMAC, + .constant = 2, + .base_key = &rfc6803_enc_test8_basekey, + .plaintext = &rfc6803_enc_9byte_plaintext, + .confounder = &rfc6803_enc_test8_confounder, + .expected_result = &rfc6803_enc_test8_expected_result, + }, + { + .desc = "Encrypt 13 bytes with camellia256-cts-cmac", + .enctype = ENCTYPE_CAMELLIA256_CTS_CMAC, + .constant = 3, + .base_key = &rfc6803_enc_test9_basekey, + .plaintext = &rfc6803_enc_13byte_plaintext, + .confounder = &rfc6803_enc_test9_confounder, + .expected_result = &rfc6803_enc_test9_expected_result, + }, + { + .desc = "Encrypt 30 bytes with camellia256-cts-cmac", + .enctype = ENCTYPE_CAMELLIA256_CTS_CMAC, + .constant = 4, + .base_key = &rfc6803_enc_test10_basekey, + .plaintext = &rfc6803_enc_30byte_plaintext, + .confounder = &rfc6803_enc_test10_confounder, + .expected_result = &rfc6803_enc_test10_expected_result, + }, +}; + +/* Creates the function rfc6803_encrypt_gen_params */ +KUNIT_ARRAY_PARAM(rfc6803_encrypt, rfc6803_encrypt_test_params, + gss_krb5_get_desc); + +static void rfc6803_encrypt_case(struct kunit *test) +{ + const struct gss_krb5_test_param *param = test->param_value; + struct crypto_sync_skcipher *cts_tfm, *cbc_tfm; + const struct gss_krb5_enctype *gk5e; + struct xdr_netobj Ke, Ki, checksum; + u8 usage_data[GSS_KRB5_K5CLENGTH]; + struct xdr_netobj usage = { + .data = usage_data, + .len = sizeof(usage_data), + }; + struct crypto_ahash *ahash_tfm; + unsigned int blocksize; + struct xdr_buf buf; + void *text; + size_t len; + u32 err; + + /* Arrange */ + gk5e = gss_krb5_lookup_enctype(param->enctype); + KUNIT_ASSERT_NOT_NULL(test, gk5e); + + usage.data[3] = param->constant; + + Ke.len = gk5e->Ke_length; + Ke.data = kunit_kzalloc(test, Ke.len, GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, Ke.data); + usage.data[4] = KEY_USAGE_SEED_ENCRYPTION; + err = gk5e->derive_key(gk5e, param->base_key, &Ke, &usage, GFP_KERNEL); + KUNIT_ASSERT_EQ(test, err, 0); + + cbc_tfm = crypto_alloc_sync_skcipher(gk5e->aux_cipher, 0, 0); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, cbc_tfm); + err = crypto_sync_skcipher_setkey(cbc_tfm, Ke.data, Ke.len); + KUNIT_ASSERT_EQ(test, err, 0); + + cts_tfm = crypto_alloc_sync_skcipher(gk5e->encrypt_name, 0, 0); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, cts_tfm); + err = crypto_sync_skcipher_setkey(cts_tfm, Ke.data, Ke.len); + KUNIT_ASSERT_EQ(test, err, 0); + blocksize = crypto_sync_skcipher_blocksize(cts_tfm); + + len = param->confounder->len + param->plaintext->len + blocksize; + text = kunit_kzalloc(test, len, GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, text); + memcpy(text, param->confounder->data, param->confounder->len); + memcpy(text + param->confounder->len, param->plaintext->data, + param->plaintext->len); + + memset(&buf, 0, sizeof(buf)); + buf.head[0].iov_base = text; + buf.head[0].iov_len = param->confounder->len + param->plaintext->len; + buf.len = buf.head[0].iov_len; + + checksum.len = gk5e->cksumlength; + checksum.data = kunit_kzalloc(test, checksum.len, GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, checksum.data); + + Ki.len = gk5e->Ki_length; + Ki.data = kunit_kzalloc(test, Ki.len, GFP_KERNEL); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, Ki.data); + usage.data[4] = KEY_USAGE_SEED_INTEGRITY; + err = gk5e->derive_key(gk5e, param->base_key, &Ki, + &usage, GFP_KERNEL); + KUNIT_ASSERT_EQ(test, err, 0); + ahash_tfm = crypto_alloc_ahash(gk5e->cksum_name, 0, CRYPTO_ALG_ASYNC); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ahash_tfm); + err = crypto_ahash_setkey(ahash_tfm, Ki.data, Ki.len); + KUNIT_ASSERT_EQ(test, err, 0); + + /* Act */ + err = gss_krb5_checksum(ahash_tfm, NULL, 0, &buf, 0, &checksum); + KUNIT_ASSERT_EQ(test, err, 0); + + err = krb5_cbc_cts_encrypt(cts_tfm, cbc_tfm, 0, &buf, NULL, NULL, 0); + KUNIT_ASSERT_EQ(test, err, 0); + + /* Assert */ + KUNIT_EXPECT_EQ_MSG(test, param->expected_result->len, + buf.len + checksum.len, + "ciphertext length mismatch"); + KUNIT_EXPECT_EQ_MSG(test, + memcmp(param->expected_result->data, + buf.head[0].iov_base, buf.len), 0, + "encrypted result mismatch"); + KUNIT_EXPECT_EQ_MSG(test, + memcmp(param->expected_result->data + + (param->expected_result->len - checksum.len), + checksum.data, checksum.len), 0, + "HMAC mismatch"); + + crypto_free_ahash(ahash_tfm); + crypto_free_sync_skcipher(cts_tfm); + crypto_free_sync_skcipher(cbc_tfm); +} + static struct kunit_case rfc6803_test_cases[] = { { .name = "RFC 6803 key derivation", @@ -1010,6 +1405,11 @@ static struct kunit_case rfc6803_test_cases[] = { .run_case = checksum_case, .generate_params = rfc6803_checksum_gen_params, }, + { + .name = "RFC 6803 encryption", + .run_case = rfc6803_encrypt_case, + .generate_params = rfc6803_encrypt_gen_params, + }, };

static struct kunit_suite rfc6803_suite = {