36 lines
909 B
Go
36 lines
909 B
Go
package p256
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import (
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"crypto/ecdsa"
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"crypto/elliptic"
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"crypto/rand"
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)
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const (
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// PublicKeyBytesSize is the size, in bytes, of public keys in raw bytes.
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PublicKeyBytesSize = 1 + coordinateSize
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// PrivateKeyBytesSize is the size, in bytes, of private keys in raw bytes.
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PrivateKeyBytesSize = coordinateSize
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// SignatureBytesSize is the size, in bytes, of signatures in raw bytes.
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SignatureBytesSize = 2 * coordinateSize
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MultibaseCode = uint64(0x1200)
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// coordinateSize is the size, in bytes, of one coordinate in the elliptic curve.
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coordinateSize = 32
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)
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func GenerateKeyPair() (*PublicKey, *PrivateKey, error) {
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priv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
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if err != nil {
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return nil, nil, err
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}
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pub := priv.Public().(*ecdsa.PublicKey)
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return &PublicKey{k: pub}, &PrivateKey{k: priv}, nil
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}
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const (
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pemPubBlockType = "PUBLIC KEY"
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pemPrivBlockType = "PRIVATE KEY"
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)
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