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EVP_CIPHER-DES

NAME

EVP_CIPHER-DES - The DES EVP_CIPHER implementations

DESCRIPTION

Support for DES symmetric encryption using the EVP_CIPHER API.

Algorithm Names

The following algorithms are available in the FIPS provider as well as the default provider:

  • "DES-EDE3-ECB" or "DES-EDE3"
  • "DES-EDE3-CBC" or "DES3"

The following algorithms are available in the default provider, but not the FIPS provider:

  • "DES-EDE3-CFB8" and "DES-EDE3-CFB1"
  • "DES-EDE-ECB" or "DES-EDE"
  • "DES-EDE-CBC"
  • "DES-EDE-OFB"
  • "DES-EDE-CFB"
  • "DES3-WRAP"

The following algorithms are available in the legacy provider:

  • "DES-ECB"
  • "DES-CBC"
  • "DES-OFB"
  • "DES-CFB", "DES-CFB1" and "DES-CFB8"
  • "DESX-CBC"

Parameters

This implementation supports the parameters described in "PARAMETERS" in EVP_EncryptInit(3) including "encrypt-check" and "fips-indicator".

NOTES

The DES3-WRAP implementation does not support streaming. That means to obtain correct results there can be only one EVP_EncryptUpdate(3) or EVP_DecryptUpdate(3) call after the initialization of the context.

When wrapping (encrypting) with DES3-WRAP, the output buffer must be at least input_length + 16 bytes. The extra 16 bytes accommodate an 8-byte IV and an 8-byte integrity check value (ICV) prepended and appended by the algorithm.

SEE ALSO

provider-cipher(7), OSSL_PROVIDER-FIPS(7), OSSL_PROVIDER-default(7), OSSL_PROVIDER-legacy(7),

Copyright 2021-2026 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at https://www.openssl.org/source/license.html.