Commit b958cff6 authored by Chuck Lever's avatar Chuck Lever
Browse files

SUNRPC: Add encryption KUnit tests for the RFC 6803 encryption types 



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

Tested-by: default avatarScott Mayhew <smayhew@redhat.com>
Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
parent 02142b2c

net/sunrpc/auth_gss/gss_krb5_test.c

+400 −0
Original line number Diff line number Diff line
@@ -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 = {