blake2s_generic.c 2.3 KB

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  1. // SPDX-License-Identifier: GPL-2.0 OR MIT
  2. /*
  3. * shash interface to the generic implementation of BLAKE2s
  4. *
  5. * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  6. */
  7. #include <crypto/internal/blake2s.h>
  8. #include <crypto/internal/hash.h>
  9. #include <linux/types.h>
  10. #include <linux/kernel.h>
  11. #include <linux/module.h>
  12. static int crypto_blake2s_update_generic(struct shash_desc *desc,
  13. const u8 *in, unsigned int inlen)
  14. {
  15. return crypto_blake2s_update(desc, in, inlen, blake2s_compress_generic);
  16. }
  17. static int crypto_blake2s_final_generic(struct shash_desc *desc, u8 *out)
  18. {
  19. return crypto_blake2s_final(desc, out, blake2s_compress_generic);
  20. }
  21. #define BLAKE2S_ALG(name, driver_name, digest_size) \
  22. { \
  23. .base.cra_name = name, \
  24. .base.cra_driver_name = driver_name, \
  25. .base.cra_priority = 100, \
  26. .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY, \
  27. .base.cra_blocksize = BLAKE2S_BLOCK_SIZE, \
  28. .base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx), \
  29. .base.cra_module = THIS_MODULE, \
  30. .digestsize = digest_size, \
  31. .setkey = crypto_blake2s_setkey, \
  32. .init = crypto_blake2s_init, \
  33. .update = crypto_blake2s_update_generic, \
  34. .final = crypto_blake2s_final_generic, \
  35. .descsize = sizeof(struct blake2s_state), \
  36. }
  37. static struct shash_alg blake2s_algs[] = {
  38. BLAKE2S_ALG("blake2s-128", "blake2s-128-generic",
  39. BLAKE2S_128_HASH_SIZE),
  40. BLAKE2S_ALG("blake2s-160", "blake2s-160-generic",
  41. BLAKE2S_160_HASH_SIZE),
  42. BLAKE2S_ALG("blake2s-224", "blake2s-224-generic",
  43. BLAKE2S_224_HASH_SIZE),
  44. BLAKE2S_ALG("blake2s-256", "blake2s-256-generic",
  45. BLAKE2S_256_HASH_SIZE),
  46. };
  47. static int __init blake2s_mod_init(void)
  48. {
  49. return crypto_register_shashes(blake2s_algs, ARRAY_SIZE(blake2s_algs));
  50. }
  51. static void __exit blake2s_mod_exit(void)
  52. {
  53. crypto_unregister_shashes(blake2s_algs, ARRAY_SIZE(blake2s_algs));
  54. }
  55. subsys_initcall(blake2s_mod_init);
  56. module_exit(blake2s_mod_exit);
  57. MODULE_ALIAS_CRYPTO("blake2s-128");
  58. MODULE_ALIAS_CRYPTO("blake2s-128-generic");
  59. MODULE_ALIAS_CRYPTO("blake2s-160");
  60. MODULE_ALIAS_CRYPTO("blake2s-160-generic");
  61. MODULE_ALIAS_CRYPTO("blake2s-224");
  62. MODULE_ALIAS_CRYPTO("blake2s-224-generic");
  63. MODULE_ALIAS_CRYPTO("blake2s-256");
  64. MODULE_ALIAS_CRYPTO("blake2s-256-generic");
  65. MODULE_LICENSE("GPL v2");