1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * Crypto API support for SHA-224, SHA-256, HMAC-SHA224, and HMAC-SHA256
5  * Copyright (c) Jean-Luc Cooke <jlcooke@certainkey.com>
19  * library SHA context, except the value in bytecount must be block-aligned and
36 	ctx.bytecount -= partial;  in __crypto_sha256_export()
49 	ctx->bytecount += *p;  in __crypto_sha256_import()
66 /* SHA-224 */
106 	return __crypto_sha256_export(&SHA224_CTX(desc)->ctx, out);  in crypto_sha224_export()
111 	return __crypto_sha256_import(&SHA224_CTX(desc)->ctx, in);  in crypto_sha224_import()
116 	return __crypto_sha256_export_core(&SHA224_CTX(desc)->ctx, out);  in crypto_sha224_export_core()
121 	return __crypto_sha256_import_core(&SHA224_CTX(desc)->ctx, in);  in crypto_sha224_import_core()
124 /* SHA-256 */
164 	return __crypto_sha256_export(&SHA256_CTX(desc)->ctx, out);  in crypto_sha256_export()
169 	return __crypto_sha256_import(&SHA256_CTX(desc)->ctx, in);  in crypto_sha256_import()
174 	return __crypto_sha256_export_core(&SHA256_CTX(desc)->ctx, out);  in crypto_sha256_export_core()
179 	return __crypto_sha256_import_core(&SHA256_CTX(desc)->ctx, in);  in crypto_sha256_import_core()
182 /* HMAC-SHA224 */
196 	hmac_sha224_init(HMAC_SHA224_CTX(desc), HMAC_SHA224_KEY(desc->tfm));  in crypto_hmac_sha224_init()
217 	hmac_sha224(HMAC_SHA224_KEY(desc->tfm), data, len, out);  in crypto_hmac_sha224_digest()
223 	return __crypto_sha256_export(&HMAC_SHA224_CTX(desc)->ctx.sha_ctx, out);  in crypto_hmac_sha224_export()
230 	ctx->ctx.ostate = HMAC_SHA224_KEY(desc->tfm)->key.ostate;  in crypto_hmac_sha224_import()
231 	return __crypto_sha256_import(&ctx->ctx.sha_ctx, in);  in crypto_hmac_sha224_import()
236 	return __crypto_sha256_export_core(&HMAC_SHA224_CTX(desc)->ctx.sha_ctx,  in crypto_hmac_sha224_export_core()
245 	ctx->ctx.ostate = HMAC_SHA224_KEY(desc->tfm)->key.ostate;  in crypto_hmac_sha224_import_core()
246 	return __crypto_sha256_import_core(&ctx->ctx.sha_ctx, in);  in crypto_hmac_sha224_import_core()
249 /* HMAC-SHA256 */
263 	hmac_sha256_init(HMAC_SHA256_CTX(desc), HMAC_SHA256_KEY(desc->tfm));  in crypto_hmac_sha256_init()
284 	hmac_sha256(HMAC_SHA256_KEY(desc->tfm), data, len, out);  in crypto_hmac_sha256_digest()
290 	return __crypto_sha256_export(&HMAC_SHA256_CTX(desc)->ctx.sha_ctx, out);  in crypto_hmac_sha256_export()
297 	ctx->ctx.ostate = HMAC_SHA256_KEY(desc->tfm)->key.ostate;  in crypto_hmac_sha256_import()
298 	return __crypto_sha256_import(&ctx->ctx.sha_ctx, in);  in crypto_hmac_sha256_import()
303 	return __crypto_sha256_export_core(&HMAC_SHA256_CTX(desc)->ctx.sha_ctx,  in crypto_hmac_sha256_export_core()
312 	ctx->ctx.ostate = HMAC_SHA256_KEY(desc->tfm)->key.ostate;  in crypto_hmac_sha256_import_core()
313 	return __crypto_sha256_import_core(&ctx->ctx.sha_ctx, in);  in crypto_hmac_sha256_import_core()
321 		.base.cra_driver_name	= "sha224-lib",
339 		.base.cra_driver_name	= "sha256-lib",
357 		.base.cra_driver_name	= "hmac-sha224-lib",
377 		.base.cra_driver_name	= "hmac-sha256-lib",
410 MODULE_DESCRIPTION("Crypto API support for SHA-224, SHA-256, HMAC-SHA224, and HMAC-SHA256");
413 MODULE_ALIAS_CRYPTO("sha224-lib");
415 MODULE_ALIAS_CRYPTO("sha256-lib");
417 MODULE_ALIAS_CRYPTO("hmac-sha224-lib");
419 MODULE_ALIAS_CRYPTO("hmac-sha256-lib");