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Merge pull request #15 from MasterFlomaster1/dev
First pass on stream ciphers
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| name: Create Release | ||
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| on: | ||
| push: | ||
| tags: | ||
| - 'v*.*.*' | ||
| branches: | ||
| - "master" | ||
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| jobs: | ||
| release: | ||
| runs-on: ubuntu-latest | ||
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| steps: | ||
| - name: Checkout repository | ||
| uses: actions/checkout@v4 | ||
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| - name: Set up JDK 17 | ||
| uses: actions/setup-java@v3 | ||
| with: | ||
| java-version: '17' | ||
| distribution: 'temurin' | ||
| - name: Build with Maven | ||
| run: mvn -B package --file pom.xml | ||
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| - name: Extract version | ||
| run: echo "VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)" >> $GITHUB_ENV | ||
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| - name: Create GitHub Release | ||
| uses: softprops/action-gh-release@v2 | ||
| with: | ||
| files: | | ||
| target/simple-java-crypter-${{ env.VERSION }}.jar | ||
| env: | ||
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} |
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78 changes: 78 additions & 0 deletions
78
src/main/java/dev/masterflomaster1/sjc/crypto/StreamCipherImpl.java
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| @@ -0,0 +1,78 @@ | ||
| package dev.masterflomaster1.sjc.crypto; | ||
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| import javax.crypto.BadPaddingException; | ||
| import javax.crypto.Cipher; | ||
| import javax.crypto.IllegalBlockSizeException; | ||
| import javax.crypto.NoSuchPaddingException; | ||
| import javax.crypto.SecretKey; | ||
| import javax.crypto.spec.IvParameterSpec; | ||
| import javax.crypto.spec.SecretKeySpec; | ||
| import java.security.InvalidAlgorithmParameterException; | ||
| import java.security.InvalidKeyException; | ||
| import java.security.NoSuchAlgorithmException; | ||
| import java.security.NoSuchProviderException; | ||
| import java.util.List; | ||
| import java.util.Optional; | ||
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| public final class StreamCipherImpl { | ||
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| private StreamCipherImpl() { } | ||
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| public static byte[] encrypt(String algorithm, byte[] iv, byte[] inputData, byte[] key) { | ||
| try { | ||
| SecretKey secretKey = new SecretKeySpec(key, algorithm); | ||
| Cipher cipher = Cipher.getInstance(algorithm, "BC"); | ||
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| if (getCorrespondingIvLengthBits(algorithm).isPresent()) | ||
| cipher.init(Cipher.ENCRYPT_MODE, secretKey, new IvParameterSpec(iv)); | ||
| else | ||
| cipher.init(Cipher.ENCRYPT_MODE, secretKey); | ||
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| return cipher.doFinal(inputData); | ||
| } catch (NoSuchAlgorithmException | NoSuchPaddingException | NoSuchProviderException | InvalidKeyException | | ||
| IllegalBlockSizeException | BadPaddingException | InvalidAlgorithmParameterException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
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| public static byte[] decrypt(String algorithm, byte[] iv, byte[] inputData, byte[] key) { | ||
| try { | ||
| SecretKey secretKey = new SecretKeySpec(key, algorithm); | ||
| Cipher cipher = Cipher.getInstance(algorithm, "BC"); | ||
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| if (getCorrespondingIvLengthBits(algorithm).isPresent()) | ||
| cipher.init(Cipher.DECRYPT_MODE, secretKey, new IvParameterSpec(iv)); | ||
| else | ||
| cipher.init(Cipher.DECRYPT_MODE, secretKey); | ||
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| return cipher.doFinal(inputData); | ||
| } catch (NoSuchAlgorithmException | NoSuchPaddingException | NoSuchProviderException | InvalidKeyException | | ||
| IllegalBlockSizeException | BadPaddingException | InvalidAlgorithmParameterException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
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| public static List<Integer> getCorrespondingKeyLengths(String algorithm) { | ||
| return switch (algorithm) { | ||
| case "ARC4", "Grain128", "HC128", "ZUC-128", "VMPC", "VMPC-KSA3" -> List.of(128); | ||
| case "CHACHA", "CHACHA7539", "CHACHA20-POLY1305", "HC256", "ZUC-256", "XSALSA20" -> List.of(256); | ||
| case "SALSA20" -> List.of(128, 256); | ||
| case "Grainv1" -> List.of(80); | ||
| default -> throw new RuntimeException("Unsupported algorithm: " + algorithm); | ||
| }; | ||
| } | ||
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| public static Optional<List<Integer>> getCorrespondingIvLengthBits(String algorithm) { | ||
| return switch (algorithm) { | ||
| case "ARC4" -> Optional.empty(); | ||
| case "CHACHA", "Grainv1", "SALSA20" -> Optional.of(List.of(64)); | ||
| case "CHACHA7539", "CHACHA20-POLY1305", "Grain128" -> Optional.of(List.of(96)); | ||
| case "HC128", "ZUC-128" -> Optional.of(List.of(128)); | ||
| case "HC256" -> Optional.of(List.of(256)); | ||
| case "XSALSA20" -> Optional.of(List.of(192)); | ||
| case "ZUC-256" -> Optional.of(List.of(200)); | ||
| case "VMPC", "VMPC-KSA3" -> Optional.of(List.of(8, 16, 32, 64, 128, 256, 512)); | ||
| default -> throw new RuntimeException("Unsupported algorithm: " + algorithm); | ||
| }; | ||
| } | ||
| } |
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