otPlatCryptoEcdsaSignUsingKeyRef() function

Calculate the ECDSA signature for a hashed message using the Key reference passed. Uses the deterministic digital signature generation procedure from RFC 6979.

Syntax

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Summary

Declaration

from crypto.h:626

otError otPlatCryptoEcdsaSignUsingKeyRef(otCryptoKeyRef aKeyRef, const otPlatCryptoSha256Hash *aHash, otPlatCryptoEcdsaSignature *aSignature);

Arguments

Argument

Description

aKeyRef

Key Reference to the slot where the key-pair is stored.

aHash

A pointer to a SHA-256 hash structure where the hash value for signature calculation is stored.

aSignature

A pointer to an ECDSA signature structure to output the calculated signature.

Return value

OT_ERROR_NONE The signature was calculated successfully, @p aSignature was updated. OT_ERROR_PARSE The key-pair DER format could not be parsed (invalid format). OT_ERROR_NO_BUFS Failed to allocate buffer for signature calculation. OT_ERROR_INVALID_ARGS The @p aContext is NULL.

Notes

This API is only used by OT core when `OPENTHREAD_CONFIG_PLATFORM_KEY_REFERENCES_ENABLE` is enabled.

References

Code

Location

otError otPlatCryptoEcdsaSignUsingKeyRef(otCryptoKeyRef aKeyRef,

crypto.h:626

otPlatCryptoEcdsaSignUsingKeyRef() function

Syntax

Arguments

Return value

Notes

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References

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