Commit 00182040 authored by Przemyslaw Bida's avatar Przemyslaw Bida Committed by David Leach
Browse files

net: openthread: Add new key and algorithm in PSA. 



This commit adds new types of keys and algorithm to crypto_psa backend
of openthread.

Added options:
- `OT_CRYPTO_KEY_TYPE_ECDSA`
- `OT_CRYPTO_KEY_ALG_ECDSA`
- `OT_CRYPTO_KEY_USAGE_VERIFY_HASH`

Signed-off-by: default avatarPrzemyslaw Bida <przemyslaw.bida@nordicsemi.no>
parent c8c91c7b

modules/openthread/platform/crypto_psa.c

+12 −3
Original line number Diff line number Diff line
@@ -41,6 +41,8 @@ static psa_key_type_t toPsaKeyType(otCryptoKeyType aType) 
		return PSA_KEY_TYPE_AES;

	case OT_CRYPTO_KEY_TYPE_HMAC:

		return PSA_KEY_TYPE_HMAC;

	case OT_CRYPTO_KEY_TYPE_ECDSA:

		return PSA_KEY_TYPE_ECC_KEY_PAIR(PSA_ECC_FAMILY_SECP_R1);

	default:

		return PSA_KEY_TYPE_NONE;

	}
@@ -53,6 +55,8 @@ static psa_algorithm_t toPsaAlgorithm(otCryptoKeyAlgorithm aAlgorithm) 
		return PSA_ALG_ECB_NO_PADDING;

	case OT_CRYPTO_KEY_ALG_HMAC_SHA_256:

		return PSA_ALG_HMAC(PSA_ALG_SHA_256);

	case OT_CRYPTO_KEY_ALG_ECDSA:

		return PSA_ALG_DETERMINISTIC_ECDSA(PSA_ALG_SHA_256);

	default:

		/*

		 * There is currently no constant like PSA_ALG_NONE, but 0 is used
@@ -82,6 +86,10 @@ static psa_key_usage_t toPsaKeyUsage(int aUsage) 
		usage |= PSA_KEY_USAGE_SIGN_HASH;

	}



	if (aUsage & OT_CRYPTO_KEY_USAGE_VERIFY_HASH) {

		usage |= PSA_KEY_USAGE_VERIFY_HASH;

	}



	return usage;

}
@@ -91,7 +99,8 @@ static bool checkKeyUsage(int aUsage) 
	int supported_flags = OT_CRYPTO_KEY_USAGE_EXPORT |

			      OT_CRYPTO_KEY_USAGE_ENCRYPT   |

			      OT_CRYPTO_KEY_USAGE_DECRYPT   |

			      OT_CRYPTO_KEY_USAGE_SIGN_HASH;

			      OT_CRYPTO_KEY_USAGE_SIGN_HASH |

				  OT_CRYPTO_KEY_USAGE_VERIFY_HASH;



	return (aUsage & ~supported_flags) == 0;

}

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