13 lines
728 B
Markdown
13 lines
728 B
Markdown
# perl-Crypt-DES_EDE3
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Crypt::DES_EDE3 implements DES-EDE3 encryption.
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This is triple-DES encryption where an encrypt operation is encrypt-decrypt-encrypt, and decrypt is decrypt-encrypt-decrypt.
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This implementation uses Crypt::DES to do its dirty DES work, and simply provides a wrapper around that module: setting up the individual DES ciphers, initializing the keys, and performing the encryption/decryption steps.
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DES-EDE3 encryption requires a key size of 24 bytes.
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You're probably best off not using this module directly, as the encrypt and decrypt methods expect 8-octet blocks.
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You might want to use the module in conjunction with Crypt::CBC, for example.
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This would be DES-EDE3-CBC, or triple-DES in outer CBC mode.
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