Jan Glauber | 291dc7c | 2008-03-06 19:52:00 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Cryptographic API. |
| 3 | * |
Jan Glauber | 4e2c6d7 | 2008-03-06 19:53:50 +0800 | [diff] [blame^] | 4 | * s390 implementation of the SHA512 and SHA38 Secure Hash Algorithm. |
Jan Glauber | 291dc7c | 2008-03-06 19:52:00 +0800 | [diff] [blame] | 5 | * |
| 6 | * Copyright IBM Corp. 2007 |
| 7 | * Author(s): Jan Glauber (jang@de.ibm.com) |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify it |
| 10 | * under the terms of the GNU General Public License as published by the Free |
| 11 | * Software Foundation; either version 2 of the License, or (at your option) |
| 12 | * any later version. |
| 13 | * |
| 14 | */ |
| 15 | #include <linux/init.h> |
| 16 | #include <linux/module.h> |
| 17 | #include <linux/crypto.h> |
| 18 | |
| 19 | #include "sha.h" |
| 20 | #include "crypt_s390.h" |
| 21 | |
| 22 | static void sha512_init(struct crypto_tfm *tfm) |
| 23 | { |
| 24 | struct s390_sha_ctx *ctx = crypto_tfm_ctx(tfm); |
| 25 | |
| 26 | *(__u64 *)&ctx->state[0] = 0x6a09e667f3bcc908ULL; |
| 27 | *(__u64 *)&ctx->state[2] = 0xbb67ae8584caa73bULL; |
| 28 | *(__u64 *)&ctx->state[4] = 0x3c6ef372fe94f82bULL; |
| 29 | *(__u64 *)&ctx->state[6] = 0xa54ff53a5f1d36f1ULL; |
| 30 | *(__u64 *)&ctx->state[8] = 0x510e527fade682d1ULL; |
| 31 | *(__u64 *)&ctx->state[10] = 0x9b05688c2b3e6c1fULL; |
| 32 | *(__u64 *)&ctx->state[12] = 0x1f83d9abfb41bd6bULL; |
| 33 | *(__u64 *)&ctx->state[14] = 0x5be0cd19137e2179ULL; |
| 34 | ctx->count = 0; |
| 35 | ctx->func = KIMD_SHA_512; |
| 36 | } |
| 37 | |
Jan Glauber | 4e2c6d7 | 2008-03-06 19:53:50 +0800 | [diff] [blame^] | 38 | static struct crypto_alg sha512_alg = { |
Jan Glauber | 291dc7c | 2008-03-06 19:52:00 +0800 | [diff] [blame] | 39 | .cra_name = "sha512", |
| 40 | .cra_driver_name = "sha512-s390", |
| 41 | .cra_priority = CRYPT_S390_PRIORITY, |
| 42 | .cra_flags = CRYPTO_ALG_TYPE_DIGEST, |
| 43 | .cra_blocksize = SHA512_BLOCK_SIZE, |
| 44 | .cra_ctxsize = sizeof(struct s390_sha_ctx), |
| 45 | .cra_module = THIS_MODULE, |
Jan Glauber | 4e2c6d7 | 2008-03-06 19:53:50 +0800 | [diff] [blame^] | 46 | .cra_list = LIST_HEAD_INIT(sha512_alg.cra_list), |
Jan Glauber | 291dc7c | 2008-03-06 19:52:00 +0800 | [diff] [blame] | 47 | .cra_u = { .digest = { |
| 48 | .dia_digestsize = SHA512_DIGEST_SIZE, |
| 49 | .dia_init = sha512_init, |
| 50 | .dia_update = s390_sha_update, |
| 51 | .dia_final = s390_sha_final } } |
| 52 | }; |
| 53 | |
Jan Glauber | 4e2c6d7 | 2008-03-06 19:53:50 +0800 | [diff] [blame^] | 54 | MODULE_ALIAS("sha512"); |
| 55 | |
| 56 | static void sha384_init(struct crypto_tfm *tfm) |
| 57 | { |
| 58 | struct s390_sha_ctx *ctx = crypto_tfm_ctx(tfm); |
| 59 | |
| 60 | *(__u64 *)&ctx->state[0] = 0xcbbb9d5dc1059ed8ULL; |
| 61 | *(__u64 *)&ctx->state[2] = 0x629a292a367cd507ULL; |
| 62 | *(__u64 *)&ctx->state[4] = 0x9159015a3070dd17ULL; |
| 63 | *(__u64 *)&ctx->state[6] = 0x152fecd8f70e5939ULL; |
| 64 | *(__u64 *)&ctx->state[8] = 0x67332667ffc00b31ULL; |
| 65 | *(__u64 *)&ctx->state[10] = 0x8eb44a8768581511ULL; |
| 66 | *(__u64 *)&ctx->state[12] = 0xdb0c2e0d64f98fa7ULL; |
| 67 | *(__u64 *)&ctx->state[14] = 0x47b5481dbefa4fa4ULL; |
| 68 | ctx->count = 0; |
| 69 | ctx->func = KIMD_SHA_512; |
| 70 | } |
| 71 | |
| 72 | static struct crypto_alg sha384_alg = { |
| 73 | .cra_name = "sha384", |
| 74 | .cra_driver_name = "sha384-s390", |
| 75 | .cra_priority = CRYPT_S390_PRIORITY, |
| 76 | .cra_flags = CRYPTO_ALG_TYPE_DIGEST, |
| 77 | .cra_blocksize = SHA384_BLOCK_SIZE, |
| 78 | .cra_ctxsize = sizeof(struct s390_sha_ctx), |
| 79 | .cra_module = THIS_MODULE, |
| 80 | .cra_list = LIST_HEAD_INIT(sha384_alg.cra_list), |
| 81 | .cra_u = { .digest = { |
| 82 | .dia_digestsize = SHA384_DIGEST_SIZE, |
| 83 | .dia_init = sha384_init, |
| 84 | .dia_update = s390_sha_update, |
| 85 | .dia_final = s390_sha_final } } |
| 86 | }; |
| 87 | |
| 88 | MODULE_ALIAS("sha384"); |
| 89 | |
Jan Glauber | 291dc7c | 2008-03-06 19:52:00 +0800 | [diff] [blame] | 90 | static int __init init(void) |
| 91 | { |
Jan Glauber | 4e2c6d7 | 2008-03-06 19:53:50 +0800 | [diff] [blame^] | 92 | int ret; |
| 93 | |
Jan Glauber | 291dc7c | 2008-03-06 19:52:00 +0800 | [diff] [blame] | 94 | if (!crypt_s390_func_available(KIMD_SHA_512)) |
| 95 | return -EOPNOTSUPP; |
Jan Glauber | 4e2c6d7 | 2008-03-06 19:53:50 +0800 | [diff] [blame^] | 96 | if ((ret = crypto_register_alg(&sha512_alg)) < 0) |
| 97 | goto out; |
| 98 | if ((ret = crypto_register_alg(&sha384_alg)) < 0) |
| 99 | crypto_unregister_alg(&sha512_alg); |
| 100 | out: |
| 101 | return ret; |
Jan Glauber | 291dc7c | 2008-03-06 19:52:00 +0800 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | static void __exit fini(void) |
| 105 | { |
Jan Glauber | 4e2c6d7 | 2008-03-06 19:53:50 +0800 | [diff] [blame^] | 106 | crypto_unregister_alg(&sha512_alg); |
| 107 | crypto_unregister_alg(&sha384_alg); |
Jan Glauber | 291dc7c | 2008-03-06 19:52:00 +0800 | [diff] [blame] | 108 | } |
| 109 | |
| 110 | module_init(init); |
| 111 | module_exit(fini); |
| 112 | |
Jan Glauber | 291dc7c | 2008-03-06 19:52:00 +0800 | [diff] [blame] | 113 | MODULE_LICENSE("GPL"); |
Jan Glauber | 4e2c6d7 | 2008-03-06 19:53:50 +0800 | [diff] [blame^] | 114 | MODULE_DESCRIPTION("SHA512 and SHA-384 Secure Hash Algorithm"); |