23 lines
569 B
Go
23 lines
569 B
Go
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package secp256r1
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import (
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"crypto/ecdsa"
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"math/big"
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)
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// Verify verifies the given signature (r, s) for the given hash and public key (x, y).
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// It returns true if the signature is valid, false otherwise.
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func Verify(hash []byte, r, s, x, y *big.Int) bool {
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// Create the public key format
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publicKey := newPublicKey(x, y)
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// Check if they are invalid public key coordinates
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if publicKey == nil {
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return false
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}
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// Verify the signature with the public key,
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// then return true if it's valid, false otherwise
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return ecdsa.Verify(publicKey, hash, r, s)
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}
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