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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| /* | ||
| * Copyright 2024 Exilor Inc. | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
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| package org.ic4j.agent; | ||
|
|
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| import java.security.MessageDigest; | ||
| import java.security.NoSuchAlgorithmException; | ||
|
|
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| import javax.xml.bind.DatatypeConverter; | ||
|
|
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| public class DigestUtils { | ||
|
|
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| public static MessageDigest getSha256Digest() { | ||
| MessageDigest messageDigest; | ||
| try { | ||
| messageDigest = MessageDigest.getInstance("SHA-256"); | ||
|
|
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| return messageDigest; | ||
| } catch (NoSuchAlgorithmException e) { | ||
| throw AgentError.create(AgentError.AgentErrorCode.CUSTOM_ERROR, e); | ||
| } | ||
| } | ||
|
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| // Compute SHA-256 hash | ||
| public static byte[] sha256(byte[] bytes) { | ||
| MessageDigest digest = getSha256Digest(); | ||
| return digest.digest(bytes); | ||
| } | ||
|
|
||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| /* | ||
| * Copyright 2024 Exilor Inc. | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
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| package org.ic4j.agent; | ||
|
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| public class Hex { | ||
| // Convert hexadecimal string to byte array | ||
| public static byte[] decodeHex(String s) { | ||
| int len = s.length(); | ||
| if (len % 2 != 0) { | ||
| throw new IllegalArgumentException("Hexadecimal string must have an even length"); | ||
| } | ||
| byte[] data = new byte[len / 2]; | ||
| for (int i = 0; i < len; i += 2) { | ||
| data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) | ||
| + Character.digit(s.charAt(i+1), 16)); | ||
| } | ||
| return data; | ||
| } | ||
|
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|
|
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| // Convert byte array to hexadecimal string manually | ||
| public static String encodeHexString(byte[] bytes) { | ||
| StringBuilder sb = new StringBuilder(); | ||
| for (byte b : bytes) { | ||
| sb.append(String.format("%02x", b)); | ||
| } | ||
| return sb.toString(); | ||
| } | ||
| } |
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