| /* |
| * Copyright 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.conscrypt; |
| |
| import java.security.NoSuchAlgorithmException; |
| import java.util.Locale; |
| |
| /** |
| * Utility class to convert between BoringSSL- and JCE-style message digest identifiers. |
| */ |
| final class EvpMdRef { |
| static final String MGF1_ALGORITHM_NAME = "MGF1"; |
| static final String MGF1_OID = "1.2.840.113549.1.1.8"; |
| |
| /** |
| * Returns the canonical JCA digest algorithm name for the provided digest |
| * algorithm name or {@code null} if the digest algorithm is not known. |
| */ |
| static String getJcaDigestAlgorithmStandardName(String algorithm) { |
| String algorithmUpper = algorithm.toUpperCase(Locale.US); |
| if ((SHA256.JCA_NAME.equals(algorithmUpper)) || (SHA256.OID.equals(algorithmUpper))) { |
| return SHA256.JCA_NAME; |
| } else if ((SHA512.JCA_NAME.equals(algorithmUpper)) |
| || (SHA512.OID.equals(algorithmUpper))) { |
| return SHA512.JCA_NAME; |
| } else if ((SHA1.JCA_NAME.equals(algorithmUpper)) || (SHA1.OID.equals(algorithmUpper))) { |
| return SHA1.JCA_NAME; |
| } else if ((SHA384.JCA_NAME.equals(algorithmUpper)) |
| || (SHA384.OID.equals(algorithmUpper))) { |
| return SHA384.JCA_NAME; |
| } else if ((SHA224.JCA_NAME.equals(algorithmUpper)) |
| || (SHA224.OID.equals(algorithmUpper))) { |
| return SHA224.JCA_NAME; |
| } else { |
| return null; |
| } |
| } |
| |
| static long getEVP_MDByJcaDigestAlgorithmStandardName(String algorithm) |
| throws NoSuchAlgorithmException { |
| String algorithmUpper = algorithm.toUpperCase(Locale.US); |
| if (SHA256.JCA_NAME.equals(algorithmUpper)) { |
| return EvpMdRef.SHA256.EVP_MD; |
| } else if (SHA512.JCA_NAME.equals(algorithmUpper)) { |
| return EvpMdRef.SHA512.EVP_MD; |
| } else if (SHA1.JCA_NAME.equals(algorithmUpper)) { |
| return EvpMdRef.SHA1.EVP_MD; |
| } else if (SHA384.JCA_NAME.equals(algorithmUpper)) { |
| return EvpMdRef.SHA384.EVP_MD; |
| } else if (SHA224.JCA_NAME.equals(algorithmUpper)) { |
| return EvpMdRef.SHA224.EVP_MD; |
| } else { |
| throw new NoSuchAlgorithmException("Unsupported algorithm: " + algorithm); |
| } |
| } |
| |
| static int getDigestSizeBytesByJcaDigestAlgorithmStandardName(String algorithm) |
| throws NoSuchAlgorithmException { |
| String algorithmUpper = algorithm.toUpperCase(Locale.US); |
| if (SHA256.JCA_NAME.equals(algorithmUpper)) { |
| return EvpMdRef.SHA256.SIZE_BYTES; |
| } else if (SHA512.JCA_NAME.equals(algorithmUpper)) { |
| return EvpMdRef.SHA512.SIZE_BYTES; |
| } else if (SHA1.JCA_NAME.equals(algorithmUpper)) { |
| return EvpMdRef.SHA1.SIZE_BYTES; |
| } else if (SHA384.JCA_NAME.equals(algorithmUpper)) { |
| return EvpMdRef.SHA384.SIZE_BYTES; |
| } else if (SHA224.JCA_NAME.equals(algorithmUpper)) { |
| return EvpMdRef.SHA224.SIZE_BYTES; |
| } else { |
| throw new NoSuchAlgorithmException("Unsupported algorithm: " + algorithm); |
| } |
| } |
| |
| static String getJcaDigestAlgorithmStandardNameFromEVP_MD(long evpMdRef) { |
| if (evpMdRef == MD5.EVP_MD) { |
| return MD5.JCA_NAME; |
| } else if (evpMdRef == SHA1.EVP_MD) { |
| return SHA1.JCA_NAME; |
| } else if (evpMdRef == SHA224.EVP_MD) { |
| return SHA224.JCA_NAME; |
| } else if (evpMdRef == SHA256.EVP_MD) { |
| return SHA256.JCA_NAME; |
| } else if (evpMdRef == SHA384.EVP_MD) { |
| return SHA384.JCA_NAME; |
| } else if (evpMdRef == SHA512.EVP_MD) { |
| return SHA512.JCA_NAME; |
| } else { |
| throw new IllegalArgumentException("Unknown EVP_MD reference"); |
| } |
| } |
| |
| static final class MD5 { |
| static final String JCA_NAME = "MD5"; |
| static final String OID = "1.2.840.113549.2.5"; |
| static final long EVP_MD = NativeCrypto.EVP_get_digestbyname("md5"); |
| static final int SIZE_BYTES = NativeCrypto.EVP_MD_size(EVP_MD); |
| |
| private MD5() {} |
| } |
| |
| static final class SHA1 { |
| static final String JCA_NAME = "SHA-1"; |
| static final String OID = "1.3.14.3.2.26"; |
| static final long EVP_MD = NativeCrypto.EVP_get_digestbyname("sha1"); |
| static final int SIZE_BYTES = NativeCrypto.EVP_MD_size(EVP_MD); |
| private SHA1() {} |
| } |
| |
| static final class SHA224 { |
| static final String JCA_NAME = "SHA-224"; |
| static final String OID = "2.16.840.1.101.3.4.2.4"; |
| static final long EVP_MD = NativeCrypto.EVP_get_digestbyname("sha224"); |
| static final int SIZE_BYTES = NativeCrypto.EVP_MD_size(EVP_MD); |
| |
| private SHA224() {} |
| } |
| |
| static final class SHA256 { |
| static final String JCA_NAME = "SHA-256"; |
| static final String OID = "2.16.840.1.101.3.4.2.1"; |
| static final long EVP_MD = NativeCrypto.EVP_get_digestbyname("sha256"); |
| static final int SIZE_BYTES = NativeCrypto.EVP_MD_size(EVP_MD); |
| |
| private SHA256() {} |
| } |
| |
| static final class SHA384 { |
| static final String JCA_NAME = "SHA-384"; |
| static final String OID = "2.16.840.1.101.3.4.2.2"; |
| static final long EVP_MD = NativeCrypto.EVP_get_digestbyname("sha384"); |
| static final int SIZE_BYTES = NativeCrypto.EVP_MD_size(EVP_MD); |
| |
| private SHA384() {} |
| } |
| |
| static final class SHA512 { |
| static final String JCA_NAME = "SHA-512"; |
| static final String OID = "2.16.840.1.101.3.4.2.3"; |
| static final long EVP_MD = NativeCrypto.EVP_get_digestbyname("sha512"); |
| static final int SIZE_BYTES = NativeCrypto.EVP_MD_size(EVP_MD); |
| |
| private SHA512() {} |
| } |
| |
| private EvpMdRef() {} |
| } |
