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crypto_test.go
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package dtls
import (
"bytes"
"crypto/x509"
"encoding/pem"
"testing"
)
const rawPrivateKey = `
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
`
func TestGenerateKeySignature(t *testing.T) {
block, _ := pem.Decode([]byte(rawPrivateKey))
key, err := x509.ParsePKCS1PrivateKey(block.Bytes)
if err != nil {
t.Error(err)
}
clientRandom := []byte{0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f}
serverRandom := []byte{0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f}
publicKey := []byte{0x20, 0x9f, 0xd7, 0xad, 0x6d, 0xcf, 0xf4, 0x29, 0x8d, 0xd3, 0xf9, 0x6d, 0x5b, 0x1b, 0x2a, 0xf9, 0x10, 0xa0, 0x53, 0x5b, 0x14, 0x88, 0xd7, 0xf8, 0xfa, 0xbb, 0x34, 0x9a, 0x98, 0x28, 0x80, 0xb6, 0x15}
expectedSignature := []byte{
0x6f, 0x47, 0x97, 0x85, 0xcc, 0x76, 0x50, 0x93, 0xbd, 0xe2, 0x6a, 0x69, 0x0b, 0xc3, 0x03, 0xd1, 0xb7, 0xe4, 0xab, 0x88, 0x7b, 0xa6, 0x52, 0x80, 0xdf,
0xaa, 0x25, 0x7a, 0xdb, 0x29, 0x32, 0xe4, 0xd8, 0x28, 0x28, 0xb3, 0xe8, 0x04, 0x3c, 0x38, 0x16, 0xfc, 0x78, 0xe9, 0x15, 0x7b, 0xc5, 0xbd, 0x7d, 0xfc,
0xcd, 0x83, 0x00, 0x57, 0x4a, 0x3c, 0x23, 0x85, 0x75, 0x6b, 0x37, 0xd5, 0x89, 0x72, 0x73, 0xf0, 0x44, 0x8c, 0x00, 0x70, 0x1f, 0x6e, 0xa2, 0x81, 0xd0,
0x09, 0xc5, 0x20, 0x36, 0xab, 0x23, 0x09, 0x40, 0x1f, 0x4d, 0x45, 0x96, 0x62, 0xbb, 0x81, 0xb0, 0x30, 0x72, 0xad, 0x3a, 0x0a, 0xac, 0x31, 0x63, 0x40,
0x52, 0x0a, 0x27, 0xf3, 0x34, 0xde, 0x27, 0x7d, 0xb7, 0x54, 0xff, 0x0f, 0x9f, 0x5a, 0xfe, 0x07, 0x0f, 0x4e, 0x9f, 0x53, 0x04, 0x34, 0x62, 0xf4, 0x30,
0x74, 0x83, 0x35, 0xfc, 0xe4, 0x7e, 0xbf, 0x5a, 0xc4, 0x52, 0xd0, 0xea, 0xf9, 0x61, 0x4e, 0xf5, 0x1c, 0x0e, 0x58, 0x02, 0x71, 0xfb, 0x1f, 0x34, 0x55,
0xe8, 0x36, 0x70, 0x3c, 0xc1, 0xcb, 0xc9, 0xb7, 0xbb, 0xb5, 0x1c, 0x44, 0x9a, 0x6d, 0x88, 0x78, 0x98, 0xd4, 0x91, 0x2e, 0xeb, 0x98, 0x81, 0x23, 0x30,
0x73, 0x39, 0x43, 0xd5, 0xbb, 0x70, 0x39, 0xba, 0x1f, 0xdb, 0x70, 0x9f, 0x91, 0x83, 0x56, 0xc2, 0xde, 0xed, 0x17, 0x6d, 0x2c, 0x3e, 0x21, 0xea, 0x36,
0xb4, 0x91, 0xd8, 0x31, 0x05, 0x60, 0x90, 0xfd, 0xc6, 0x74, 0xa9, 0x7b, 0x18, 0xfc, 0x1c, 0x6a, 0x1c, 0x6e, 0xec, 0xd3, 0xc1, 0xc0, 0x0d, 0x11, 0x25,
0x48, 0x37, 0x3d, 0x45, 0x11, 0xa2, 0x31, 0x14, 0x0a, 0x66, 0x9f, 0xd8, 0xac, 0x74, 0xa2, 0xcd, 0xc8, 0x79, 0xb3, 0x9e, 0xc6, 0x66, 0x25, 0xcf, 0x2c,
0x87, 0x5e, 0x5c, 0x36, 0x75, 0x86,
}
signature, err := generateKeySignature(clientRandom, serverRandom, publicKey, namedCurveX25519, key, hashAlgorithmSHA256)
if err != nil {
t.Error(err)
} else if !bytes.Equal(expectedSignature, signature) {
t.Errorf("Signature generation failed \nexp % 02x \nactual % 02x ", expectedSignature, signature)
}
}