/src/boringssl/crypto/mlkem/mlkem.cc

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// Copyright 2024 The BoringSSL Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include <openssl/mlkem.h>

#include "../fipsmodule/bcm_interface.h"


static_assert(sizeof(BCM_mlkem768_private_key) <= sizeof(MLKEM768_private_key));
static_assert(alignof(BCM_mlkem768_private_key) <=
              alignof(MLKEM768_private_key));
static_assert(sizeof(BCM_mlkem768_public_key) <= sizeof(MLKEM768_public_key));
static_assert(alignof(BCM_mlkem768_public_key) <= alignof(MLKEM768_public_key));
static_assert(MLKEM768_PUBLIC_KEY_BYTES == BCM_MLKEM768_PUBLIC_KEY_BYTES);
static_assert(MLKEM_SEED_BYTES == BCM_MLKEM_SEED_BYTES);
static_assert(MLKEM768_CIPHERTEXT_BYTES == BCM_MLKEM768_CIPHERTEXT_BYTES);
static_assert(MLKEM_SHARED_SECRET_BYTES == BCM_MLKEM_SHARED_SECRET_BYTES);
static_assert(MLKEM1024_PUBLIC_KEY_BYTES == BCM_MLKEM1024_PUBLIC_KEY_BYTES);
static_assert(MLKEM1024_CIPHERTEXT_BYTES == BCM_MLKEM1024_CIPHERTEXT_BYTES);

void MLKEM768_generate_key(
    uint8_t out_encoded_public_key[MLKEM768_PUBLIC_KEY_BYTES],
    uint8_t optional_out_seed[MLKEM_SEED_BYTES],
    struct MLKEM768_private_key *out_private_key) {
  BCM_mlkem768_generate_key(
      out_encoded_public_key, optional_out_seed,
      reinterpret_cast<BCM_mlkem768_private_key *>(out_private_key));
}

int MLKEM768_private_key_from_seed(struct MLKEM768_private_key *out_private_key,
                                   const uint8_t *seed, size_t seed_len) {
  return bcm_success(BCM_mlkem768_private_key_from_seed(
      reinterpret_cast<BCM_mlkem768_private_key *>(out_private_key), seed,
      seed_len));
}

void MLKEM768_public_from_private(
    struct MLKEM768_public_key *out_public_key,
    const struct MLKEM768_private_key *private_key) {
  (void)BCM_mlkem768_public_from_private(
      reinterpret_cast<BCM_mlkem768_public_key *>(out_public_key),
      reinterpret_cast<const BCM_mlkem768_private_key *>(private_key));
}

void MLKEM768_encap(uint8_t out_ciphertext[MLKEM768_CIPHERTEXT_BYTES],
                    uint8_t out_shared_secret[MLKEM_SHARED_SECRET_BYTES],
                    const struct MLKEM768_public_key *public_key) {
  (void)BCM_mlkem768_encap(
      out_ciphertext, out_shared_secret,
      reinterpret_cast<const BCM_mlkem768_public_key *>(public_key));
}

int MLKEM768_decap(uint8_t out_shared_secret[MLKEM_SHARED_SECRET_BYTES],
                   const uint8_t *ciphertext, size_t ciphertext_len,
                   const struct MLKEM768_private_key *private_key) {
  return bcm_success(BCM_mlkem768_decap(
      out_shared_secret, ciphertext, ciphertext_len,
      reinterpret_cast<const BCM_mlkem768_private_key *>(private_key)));
}

int MLKEM768_marshal_public_key(CBB *out,
                                const struct MLKEM768_public_key *public_key) {
  return bcm_success(BCM_mlkem768_marshal_public_key(
      out, reinterpret_cast<const BCM_mlkem768_public_key *>(public_key)));
}

int MLKEM768_parse_public_key(struct MLKEM768_public_key *out_public_key,
                              CBS *in) {
  return bcm_success(BCM_mlkem768_parse_public_key(
      reinterpret_cast<BCM_mlkem768_public_key *>(out_public_key), in));
}


static_assert(sizeof(BCM_mlkem1024_private_key) <=
              sizeof(MLKEM1024_private_key));
static_assert(alignof(BCM_mlkem1024_private_key) <=
              alignof(MLKEM1024_private_key));
static_assert(sizeof(BCM_mlkem1024_public_key) <= sizeof(MLKEM1024_public_key));
static_assert(alignof(BCM_mlkem1024_public_key) <=
              alignof(MLKEM1024_public_key));

void MLKEM1024_generate_key(
    uint8_t out_encoded_public_key[MLKEM1024_PUBLIC_KEY_BYTES],
    uint8_t optional_out_seed[MLKEM_SEED_BYTES],
    struct MLKEM1024_private_key *out_private_key) {
  (void)BCM_mlkem1024_generate_key(
      out_encoded_public_key, optional_out_seed,
      reinterpret_cast<BCM_mlkem1024_private_key *>(out_private_key));
}

int MLKEM1024_private_key_from_seed(
    struct MLKEM1024_private_key *out_private_key, const uint8_t *seed,
    size_t seed_len) {
  return bcm_success(BCM_mlkem1024_private_key_from_seed(
      reinterpret_cast<BCM_mlkem1024_private_key *>(out_private_key), seed,
      seed_len));
}

void MLKEM1024_public_from_private(
    struct MLKEM1024_public_key *out_public_key,
    const struct MLKEM1024_private_key *private_key) {
  (void)BCM_mlkem1024_public_from_private(
      reinterpret_cast<BCM_mlkem1024_public_key *>(out_public_key),
      reinterpret_cast<const BCM_mlkem1024_private_key *>(private_key));
}

void MLKEM1024_encap(uint8_t out_ciphertext[MLKEM1024_CIPHERTEXT_BYTES],
                     uint8_t out_shared_secret[MLKEM_SHARED_SECRET_BYTES],
                     const struct MLKEM1024_public_key *public_key) {
  (void)BCM_mlkem1024_encap(
      out_ciphertext, out_shared_secret,
      reinterpret_cast<const BCM_mlkem1024_public_key *>(public_key));
}

int MLKEM1024_decap(uint8_t out_shared_secret[MLKEM_SHARED_SECRET_BYTES],
                    const uint8_t *ciphertext, size_t ciphertext_len,
                    const struct MLKEM1024_private_key *private_key) {
  return bcm_success(BCM_mlkem1024_decap(
      out_shared_secret, ciphertext, ciphertext_len,
      reinterpret_cast<const BCM_mlkem1024_private_key *>(private_key)));
}

int MLKEM1024_marshal_public_key(
    CBB *out, const struct MLKEM1024_public_key *public_key) {
  return bcm_success(BCM_mlkem1024_marshal_public_key(
      out, reinterpret_cast<const BCM_mlkem1024_public_key *>(public_key)));
}

int MLKEM1024_parse_public_key(struct MLKEM1024_public_key *out_public_key,
                               CBS *in) {
  return bcm_success(BCM_mlkem1024_parse_public_key(
      reinterpret_cast<BCM_mlkem1024_public_key *>(out_public_key), in));
}

Line	Count	Source (jump to first uncovered line)
1		// Copyright 2024 The BoringSSL Authors
2		//
3		// Licensed under the Apache License, Version 2.0 (the "License");
4		// you may not use this file except in compliance with the License.
5		// You may obtain a copy of the License at
6		//
7		// https://www.apache.org/licenses/LICENSE-2.0
8		//
9		// Unless required by applicable law or agreed to in writing, software
10		// distributed under the License is distributed on an "AS IS" BASIS,
11		// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12		// See the License for the specific language governing permissions and
13		// limitations under the License.
14
15		#include <openssl/mlkem.h>
16
17		#include "../fipsmodule/bcm_interface.h"
18
19
20		static_assert(sizeof(BCM_mlkem768_private_key) <= sizeof(MLKEM768_private_key));
21		static_assert(alignof(BCM_mlkem768_private_key) <=
22		alignof(MLKEM768_private_key));
23		static_assert(sizeof(BCM_mlkem768_public_key) <= sizeof(MLKEM768_public_key));
24		static_assert(alignof(BCM_mlkem768_public_key) <= alignof(MLKEM768_public_key));
25		static_assert(MLKEM768_PUBLIC_KEY_BYTES == BCM_MLKEM768_PUBLIC_KEY_BYTES);
26		static_assert(MLKEM_SEED_BYTES == BCM_MLKEM_SEED_BYTES);
27		static_assert(MLKEM768_CIPHERTEXT_BYTES == BCM_MLKEM768_CIPHERTEXT_BYTES);
28		static_assert(MLKEM_SHARED_SECRET_BYTES == BCM_MLKEM_SHARED_SECRET_BYTES);
29		static_assert(MLKEM1024_PUBLIC_KEY_BYTES == BCM_MLKEM1024_PUBLIC_KEY_BYTES);
30		static_assert(MLKEM1024_CIPHERTEXT_BYTES == BCM_MLKEM1024_CIPHERTEXT_BYTES);
31
32		void MLKEM768_generate_key(
33		uint8_t out_encoded_public_key[MLKEM768_PUBLIC_KEY_BYTES],
34		uint8_t optional_out_seed[MLKEM_SEED_BYTES],
35	56.3k	struct MLKEM768_private_key *out_private_key) {
36	56.3k	BCM_mlkem768_generate_key(
37	56.3k	out_encoded_public_key, optional_out_seed,
38	56.3k	reinterpret_cast<BCM_mlkem768_private_key *>(out_private_key));
39	56.3k	}
40
41		int MLKEM768_private_key_from_seed(struct MLKEM768_private_key *out_private_key,
42	0	const uint8_t *seed, size_t seed_len) {
43	0	return bcm_success(BCM_mlkem768_private_key_from_seed(
44	0	reinterpret_cast<BCM_mlkem768_private_key *>(out_private_key), seed,
45	0	seed_len));
46	0	}
47
48		void MLKEM768_public_from_private(
49		struct MLKEM768_public_key *out_public_key,
50	0	const struct MLKEM768_private_key *private_key) {
51	0	(void)BCM_mlkem768_public_from_private(
52	0	reinterpret_cast<BCM_mlkem768_public_key *>(out_public_key),
53	0	reinterpret_cast<const BCM_mlkem768_private_key *>(private_key));
54	0	}
55
56		void MLKEM768_encap(uint8_t out_ciphertext[MLKEM768_CIPHERTEXT_BYTES],
57		uint8_t out_shared_secret[MLKEM_SHARED_SECRET_BYTES],
58	0	const struct MLKEM768_public_key *public_key) {
59	0	(void)BCM_mlkem768_encap(
60	0	out_ciphertext, out_shared_secret,
61	0	reinterpret_cast<const BCM_mlkem768_public_key *>(public_key));
62	0	}
63
64		int MLKEM768_decap(uint8_t out_shared_secret[MLKEM_SHARED_SECRET_BYTES],
65		const uint8_t *ciphertext, size_t ciphertext_len,
66	0	const struct MLKEM768_private_key *private_key) {
67	0	return bcm_success(BCM_mlkem768_decap(
68	0	out_shared_secret, ciphertext, ciphertext_len,
69	0	reinterpret_cast<const BCM_mlkem768_private_key *>(private_key)));
70	0	}
71
72		int MLKEM768_marshal_public_key(CBB *out,
73	0	const struct MLKEM768_public_key *public_key) {
74	0	return bcm_success(BCM_mlkem768_marshal_public_key(
75	0	out, reinterpret_cast<const BCM_mlkem768_public_key *>(public_key)));
76	0	}
77
78		int MLKEM768_parse_public_key(struct MLKEM768_public_key *out_public_key,
79	0	CBS *in) {
80	0	return bcm_success(BCM_mlkem768_parse_public_key(
81	0	reinterpret_cast<BCM_mlkem768_public_key *>(out_public_key), in));
82	0	}
83
84
85		static_assert(sizeof(BCM_mlkem1024_private_key) <=
86		sizeof(MLKEM1024_private_key));
87		static_assert(alignof(BCM_mlkem1024_private_key) <=
88		alignof(MLKEM1024_private_key));
89		static_assert(sizeof(BCM_mlkem1024_public_key) <= sizeof(MLKEM1024_public_key));
90		static_assert(alignof(BCM_mlkem1024_public_key) <=
91		alignof(MLKEM1024_public_key));
92
93		void MLKEM1024_generate_key(
94		uint8_t out_encoded_public_key[MLKEM1024_PUBLIC_KEY_BYTES],
95		uint8_t optional_out_seed[MLKEM_SEED_BYTES],
96	0	struct MLKEM1024_private_key *out_private_key) {
97	0	(void)BCM_mlkem1024_generate_key(
98	0	out_encoded_public_key, optional_out_seed,
99	0	reinterpret_cast<BCM_mlkem1024_private_key *>(out_private_key));
100	0	}
101
102		int MLKEM1024_private_key_from_seed(
103		struct MLKEM1024_private_key out_private_key, const uint8_t seed,
104	0	size_t seed_len) {
105	0	return bcm_success(BCM_mlkem1024_private_key_from_seed(
106	0	reinterpret_cast<BCM_mlkem1024_private_key *>(out_private_key), seed,
107	0	seed_len));
108	0	}
109
110		void MLKEM1024_public_from_private(
111		struct MLKEM1024_public_key *out_public_key,
112	0	const struct MLKEM1024_private_key *private_key) {
113	0	(void)BCM_mlkem1024_public_from_private(
114	0	reinterpret_cast<BCM_mlkem1024_public_key *>(out_public_key),
115	0	reinterpret_cast<const BCM_mlkem1024_private_key *>(private_key));
116	0	}
117
118		void MLKEM1024_encap(uint8_t out_ciphertext[MLKEM1024_CIPHERTEXT_BYTES],
119		uint8_t out_shared_secret[MLKEM_SHARED_SECRET_BYTES],
120	0	const struct MLKEM1024_public_key *public_key) {
121	0	(void)BCM_mlkem1024_encap(
122	0	out_ciphertext, out_shared_secret,
123	0	reinterpret_cast<const BCM_mlkem1024_public_key *>(public_key));
124	0	}
125
126		int MLKEM1024_decap(uint8_t out_shared_secret[MLKEM_SHARED_SECRET_BYTES],
127		const uint8_t *ciphertext, size_t ciphertext_len,
128	0	const struct MLKEM1024_private_key *private_key) {
129	0	return bcm_success(BCM_mlkem1024_decap(
130	0	out_shared_secret, ciphertext, ciphertext_len,
131	0	reinterpret_cast<const BCM_mlkem1024_private_key *>(private_key)));
132	0	}
133
134		int MLKEM1024_marshal_public_key(
135	0	CBB out, const struct MLKEM1024_public_key public_key) {
136	0	return bcm_success(BCM_mlkem1024_marshal_public_key(
137	0	out, reinterpret_cast<const BCM_mlkem1024_public_key *>(public_key)));
138	0	}
139
140		int MLKEM1024_parse_public_key(struct MLKEM1024_public_key *out_public_key,
141	0	CBS *in) {
142	0	return bcm_success(BCM_mlkem1024_parse_public_key(
143	0	reinterpret_cast<BCM_mlkem1024_public_key *>(out_public_key), in));
144	0	}

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Created: 2025-06-11 06:41