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Implement OAEP

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Implement RSAES-OAEP encryption and decryption.

Test it to the same level as PKCS#1 v1.5.
This commit is contained in:
Gilles Peskine 2018-06-30 00:21:29 +02:00 • committed by itayzafrir
parent 71ac7b11a7
commit 072ac56a03
3 changed files with 100 additions and 6 deletions
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8
include/psa/crypto.h
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@ -957,6 +957,10 @@ typedef uint32_t psa_algorithm_t;
(PSA_ALG_RSA_OAEP_BASE | ((hash_alg) & PSA_ALG_HASH_MASK))
#define PSA_ALG_IS_RSA_OAEP(alg) \
(((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_RSA_OAEP_BASE)
#define PSA_ALG_RSA_OAEP_GET_HASH(alg) \
(PSA_ALG_IS_RSA_OAEP(alg) ? \
((alg) & PSA_ALG_HASH_MASK) | PSA_ALG_CATEGORY_HASH : \
0)
/**@}*/
@ -2314,8 +2318,8 @@ psa_status_t psa_asymmetric_verify(psa_key_slot_t key,
size_t signature_length);
#define PSA_RSA_MINIMUM_PADDING_SIZE(alg) \
(PSA_ALG_IS_RSA_OAEP_MGF1(alg) ? \
2 * PSA_HASH_FINAL_SIZE(PSA_ALG_RSA_GET_HASH(alg)) + 1 : \
(PSA_ALG_IS_RSA_OAEP(alg) ? \
2 * PSA_HASH_FINAL_SIZE(PSA_ALG_RSA_OAEP_GET_HASH(alg)) + 1 : \
11 /*PKCS#1v1.5*/)
/**