Package info.riemannhypothesis.crypto.tools

Examples of info.riemannhypothesis.crypto.tools.ByteSequence.byteAt()

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      ByteSequence block = blocks.blockAt(i);
      boolean lastBlock = (i == blocks.length() - 1);
      try {
        ByteSequence plainBlock = decryptBlock(iv, block);
        if (lastBlock) {
          byte paddingLength = plainBlock
              .byteAt(plainBlock.length() - 1);
          if (paddingLength < 1 || paddingLength > blockLength) {
            throw new Exception("Incorrect padding");
          }
          for (int pos = 1; pos < paddingLength; pos++) {
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              .byteAt(plainBlock.length() - 1);
          if (paddingLength < 1 || paddingLength > blockLength) {
            throw new Exception("Incorrect padding");
          }
          for (int pos = 1; pos < paddingLength; pos++) {
            if (plainBlock.byteAt(plainBlock.length() - 1 - pos) != paddingLength) {
              throw new Exception("Incorrect padding");
            }
          }
          plainBlock = plainBlock.range(0, plainBlock.length()
              - paddingLength);
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