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SourceVuESP-IDF Framework and ExamplesESP-IDFot::Crypto::Ecdsa::P256::KeyPair::Sign() const

ot::Crypto::Ecdsa::P256::KeyPair::Sign() const method

Calculates the ECDSA signature for a hashed message using the private key from `KeyPair`. Uses the deterministic digital signature generation procedure from RFC 6979.

Syntax

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Summary

Declaration

from ecdsa.hpp:193

Error Sign(const Sha256::Hash &aHash, Signature &aSignature) const;

Arguments

Argument

Description

aHash

The SHA-256 hash value of the message to use for signature calculation.

aSignature

A reference to a `Signature` to output the calculated signature value.

Return value

kErrorNone The signature was calculated successfully and @p aSignature was updated. kErrorParse The key-pair DER format could not be parsed (invalid format). kErrorInvalidArgs The @p aHash is invalid. kErrorNoBufs Failed to allocate buffer for signature calculation.

References

Code

Location

Scope

Referrer

Error Sign(const Sha256::Hash &aHash, Signature &aSignature) const

ecdsa.hpp:193

SuccessOrExit(error = aInfo.mKeyInfo.Sign(hash, signature));

srp_client.cpp:1721

ot::Srp::Client

ot::Srp::Client::AppendSignature()

Call Tree

ot::Crypto::Ecdsa::P256::KeyPair::Sign() const is called by 1 function:

ot::Srp::Client::AppendSignature()

ot::Crypto::Ecdsa::P256::KeyPair::Sign() const

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ot::Crypto::Ecdsa::P256::KeyPair::Sign() const method

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