Crypto.java

// Copyright (c) 2014-2018, Yubico AB
// Copyright (c) 2014, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
// 3. Neither the name of Google Inc. nor the names of its contributors may be
//    used to endorse or promote products derived from this software without
//    specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

package com.yubico.webauthn;

import com.google.common.hash.Hashing;
import com.yubico.webauthn.data.ByteArray;
import com.yubico.webauthn.data.COSEAlgorithmIdentifier;
import java.math.BigInteger;
import java.nio.charset.StandardCharsets;
import java.security.GeneralSecurityException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.PublicKey;
import java.security.Signature;
import java.security.cert.X509Certificate;
import java.security.spec.ECFieldFp;
import java.security.spec.ECParameterSpec;
import java.security.spec.EllipticCurve;
import lombok.experimental.UtilityClass;
import lombok.extern.slf4j.Slf4j;

@UtilityClass
@Slf4j
final class Crypto {
  // Values from
  // https://apps.nsa.gov/iaarchive/library/ia-guidance/ia-solutions-for-classified/algorithm-guidance/mathematical-routines-for-the-nist-prime-elliptic-curves.cfm
  // cross-referenced with "secp256r1" in https://www.secg.org/sec2-v2.pdf
  private static final EllipticCurve P256 =
      new EllipticCurve(
          new ECFieldFp(
              new BigInteger(
                  "115792089210356248762697446949407573530086143415290314195533631308867097853951",
                  10)),
          new BigInteger(
              "115792089210356248762697446949407573530086143415290314195533631308867097853948", 10),
          new BigInteger(
              "41058363725152142129326129780047268409114441015993725554835256314039467401291", 10));

  static boolean isP256(ECParameterSpec params) {
    return P256.equals(params.getCurve());
  }

  public static boolean verifySignature(
      X509Certificate attestationCertificate,
      ByteArray signedBytes,
      ByteArray signature,
      COSEAlgorithmIdentifier alg) {
    return verifySignature(attestationCertificate.getPublicKey(), signedBytes, signature, alg);
  }

  public static boolean verifySignature(
      PublicKey publicKey,
      ByteArray signedBytes,
      ByteArray signatureBytes,
      COSEAlgorithmIdentifier alg) {
    try {
      Signature signature = Signature.getInstance(WebAuthnCodecs.getJavaAlgorithmName(alg));
      signature.initVerify(publicKey);
      signature.update(signedBytes.getBytes());
      return signature.verify(signatureBytes.getBytes());
    } catch (GeneralSecurityException | IllegalArgumentException e) {
      throw new RuntimeException(
          String.format(
              "Failed to verify signature. This could be a problem with your JVM environment, or a bug in webauthn-server-core. Public key: %s, signed data: %s , signature: %s",
              publicKey, signedBytes.getBase64Url(), signatureBytes.getBase64Url()),
          e);
    }
  }

  public static ByteArray sha256(ByteArray bytes) {
    return new ByteArray(Hashing.sha256().hashBytes(bytes.getBytes()).asBytes());
  }

  public static ByteArray sha384(ByteArray bytes) {
    return new ByteArray(Hashing.sha384().hashBytes(bytes.getBytes()).asBytes());
  }

  public static ByteArray sha512(ByteArray bytes) {
    return new ByteArray(Hashing.sha512().hashBytes(bytes.getBytes()).asBytes());
  }

  public static ByteArray sha256(String str) {
    return sha256(new ByteArray(str.getBytes(StandardCharsets.UTF_8)));
  }

  public static ByteArray sha1(ByteArray bytes) throws NoSuchAlgorithmException {
    return new ByteArray(MessageDigest.getInstance("SHA-1").digest(bytes.getBytes()));
  }
}












Active mutators

CONDITIONALS_BOUNDARY
EMPTY_RETURNS
FALSE_RETURNS
INCREMENTS
INVERT_NEGS
MATH
NEGATE_CONDITIONALS
NULL_RETURNS
PRIMITIVE_RETURNS
TRUE_RETURNS
VOID_METHOD_CALLS

Tests examined

com.yubico.webauthn.RelyingPartyCeremoniesSpec (519 ms)
com.yubico.webauthn.AppleAttestationStatementVerifierSpec (1016 ms)
com.yubico.webauthn.RelyingPartyV2RegistrationSpec (8368 ms)
com.yubico.webauthn.RelyingPartyRegistrationSpec (10987 ms)
com.yubico.webauthn.PackedAttestationStatementVerifierSpec (393 ms)
com.yubico.webauthn.RelyingPartyUserIdentificationSpec (57 ms)
com.yubico.webauthn.RelyingPartyV2AssertionSpec (883 ms)
com.yubico.webauthn.RelyingPartyAssertionSpec (1825 ms)

Report generated by PIT 1.15.0

1		// Copyright (c) 2014-2018, Yubico AB
2		// Copyright (c) 2014, Google Inc.
3		// All rights reserved.
4		//
5		// Redistribution and use in source and binary forms, with or without
6		// modification, are permitted provided that the following conditions are met:
7		//
8		// 1. Redistributions of source code must retain the above copyright notice, this
9		// list of conditions and the following disclaimer.
10		//
11		// 2. Redistributions in binary form must reproduce the above copyright notice,
12		// this list of conditions and the following disclaimer in the documentation
13		// and/or other materials provided with the distribution.
14		//
15		// 3. Neither the name of Google Inc. nor the names of its contributors may be
16		// used to endorse or promote products derived from this software without
17		// specific prior written permission.
18		//
19		// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20		// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21		// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22		// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
23		// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24		// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25		// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26		// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
27		// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28		// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
30		package com.yubico.webauthn;
31
32		import com.google.common.hash.Hashing;
33		import com.yubico.webauthn.data.ByteArray;
34		import com.yubico.webauthn.data.COSEAlgorithmIdentifier;
35		import java.math.BigInteger;
36		import java.nio.charset.StandardCharsets;
37		import java.security.GeneralSecurityException;
38		import java.security.MessageDigest;
39		import java.security.NoSuchAlgorithmException;
40		import java.security.PublicKey;
41		import java.security.Signature;
42		import java.security.cert.X509Certificate;
43		import java.security.spec.ECFieldFp;
44		import java.security.spec.ECParameterSpec;
45		import java.security.spec.EllipticCurve;
46		import lombok.experimental.UtilityClass;
47		import lombok.extern.slf4j.Slf4j;
48
49		@UtilityClass
50		@Slf4j
51		final class Crypto {
52		// Values from
53		// https://apps.nsa.gov/iaarchive/library/ia-guidance/ia-solutions-for-classified/algorithm-guidance/mathematical-routines-for-the-nist-prime-elliptic-curves.cfm
54		// cross-referenced with "secp256r1" in https://www.secg.org/sec2-v2.pdf
55		private static final EllipticCurve P256 =
56		new EllipticCurve(
57		new ECFieldFp(
58		new BigInteger(
59		"115792089210356248762697446949407573530086143415290314195533631308867097853951",
60		10)),
61		new BigInteger(
62		"115792089210356248762697446949407573530086143415290314195533631308867097853948", 10),
63		new BigInteger(
64		"41058363725152142129326129780047268409114441015993725554835256314039467401291", 10));
65
66		static boolean isP256(ECParameterSpec params) {
67	2 1. isP256 : replaced boolean return with true for com/yubico/webauthn/Crypto::isP256 → KILLED 2. isP256 : replaced boolean return with false for com/yubico/webauthn/Crypto::isP256 → KILLED	return P256.equals(params.getCurve());
68		}
69
70		public static boolean verifySignature(
71		X509Certificate attestationCertificate,
72		ByteArray signedBytes,
73		ByteArray signature,
74		COSEAlgorithmIdentifier alg) {
75	2 1. verifySignature : replaced boolean return with true for com/yubico/webauthn/Crypto::verifySignature → KILLED 2. verifySignature : replaced boolean return with false for com/yubico/webauthn/Crypto::verifySignature → KILLED	return verifySignature(attestationCertificate.getPublicKey(), signedBytes, signature, alg);
76		}
77
78		public static boolean verifySignature(
79		PublicKey publicKey,
80		ByteArray signedBytes,
81		ByteArray signatureBytes,
82		COSEAlgorithmIdentifier alg) {
83		try {
84		Signature signature = Signature.getInstance(WebAuthnCodecs.getJavaAlgorithmName(alg));
85	1 1. verifySignature : removed call to java/security/Signature::initVerify → KILLED	signature.initVerify(publicKey);
86	1 1. verifySignature : removed call to java/security/Signature::update → KILLED	signature.update(signedBytes.getBytes());
87	2 1. verifySignature : replaced boolean return with true for com/yubico/webauthn/Crypto::verifySignature → KILLED 2. verifySignature : replaced boolean return with false for com/yubico/webauthn/Crypto::verifySignature → KILLED	return signature.verify(signatureBytes.getBytes());
88		} catch (GeneralSecurityException \| IllegalArgumentException e) {
89		throw new RuntimeException(
90		String.format(
91		"Failed to verify signature. This could be a problem with your JVM environment, or a bug in webauthn-server-core. Public key: %s, signed data: %s , signature: %s",
92		publicKey, signedBytes.getBase64Url(), signatureBytes.getBase64Url()),
93		e);
94		}
95		}
96
97		public static ByteArray sha256(ByteArray bytes) {
98	1 1. sha256 : replaced return value with null for com/yubico/webauthn/Crypto::sha256 → KILLED	return new ByteArray(Hashing.sha256().hashBytes(bytes.getBytes()).asBytes());
99		}
100
101		public static ByteArray sha384(ByteArray bytes) {
102	1 1. sha384 : replaced return value with null for com/yubico/webauthn/Crypto::sha384 → KILLED	return new ByteArray(Hashing.sha384().hashBytes(bytes.getBytes()).asBytes());
103		}
104
105		public static ByteArray sha512(ByteArray bytes) {
106	1 1. sha512 : replaced return value with null for com/yubico/webauthn/Crypto::sha512 → KILLED	return new ByteArray(Hashing.sha512().hashBytes(bytes.getBytes()).asBytes());
107		}
108
109		public static ByteArray sha256(String str) {
110	1 1. sha256 : replaced return value with null for com/yubico/webauthn/Crypto::sha256 → KILLED	return sha256(new ByteArray(str.getBytes(StandardCharsets.UTF_8)));
111		}
112
113		public static ByteArray sha1(ByteArray bytes) throws NoSuchAlgorithmException {
114	1 1. sha1 : replaced return value with null for com/yubico/webauthn/Crypto::sha1 → KILLED	return new ByteArray(MessageDigest.getInstance("SHA-1").digest(bytes.getBytes()));
115		}
116		}
		Mutations
67		1.1 Location : isP256 Killed by : com.yubico.webauthn.RelyingPartyV2RegistrationSpec replaced boolean return with true for com/yubico/webauthn/Crypto::isP256 → KILLED 2.2 Location : isP256 Killed by : com.yubico.webauthn.PackedAttestationStatementVerifierSpec replaced boolean return with false for com/yubico/webauthn/Crypto::isP256 → KILLED
75		1.1 Location : verifySignature Killed by : com.yubico.webauthn.RelyingPartyV2RegistrationSpec replaced boolean return with true for com/yubico/webauthn/Crypto::verifySignature → KILLED 2.2 Location : verifySignature Killed by : com.yubico.webauthn.RelyingPartyCeremoniesSpec replaced boolean return with false for com/yubico/webauthn/Crypto::verifySignature → KILLED
85		1.1 Location : verifySignature Killed by : com.yubico.webauthn.RelyingPartyUserIdentificationSpec removed call to java/security/Signature::initVerify → KILLED
86		1.1 Location : verifySignature Killed by : com.yubico.webauthn.RelyingPartyUserIdentificationSpec removed call to java/security/Signature::update → KILLED
87		1.1 Location : verifySignature Killed by : com.yubico.webauthn.RelyingPartyV2AssertionSpec replaced boolean return with true for com/yubico/webauthn/Crypto::verifySignature → KILLED 2.2 Location : verifySignature Killed by : com.yubico.webauthn.RelyingPartyUserIdentificationSpec replaced boolean return with false for com/yubico/webauthn/Crypto::verifySignature → KILLED
98		1.1 Location : sha256 Killed by : com.yubico.webauthn.RelyingPartyUserIdentificationSpec replaced return value with null for com/yubico/webauthn/Crypto::sha256 → KILLED
102		1.1 Location : sha384 Killed by : com.yubico.webauthn.RelyingPartyV2RegistrationSpec replaced return value with null for com/yubico/webauthn/Crypto::sha384 → KILLED
106		1.1 Location : sha512 Killed by : com.yubico.webauthn.RelyingPartyV2RegistrationSpec replaced return value with null for com/yubico/webauthn/Crypto::sha512 → KILLED
110		1.1 Location : sha256 Killed by : com.yubico.webauthn.RelyingPartyUserIdentificationSpec replaced return value with null for com/yubico/webauthn/Crypto::sha256 → KILLED
114		1.1 Location : sha1 Killed by : com.yubico.webauthn.RelyingPartyV2RegistrationSpec replaced return value with null for com/yubico/webauthn/Crypto::sha1 → KILLED

Crypto.java

Mutations

Active mutators

Tests examined