229 lines
10 KiB
Plaintext
229 lines
10 KiB
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.\" ========================================================================
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.\"
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.IX Title "EVP_CIPHER-AES 7ossl"
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.TH EVP_CIPHER-AES 7ossl "2024-01-30" "3.2.1" "OpenSSL"
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.\" For nroff, turn off justification. Always turn off hyphenation; it makes
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.\" way too many mistakes in technical documents.
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.if n .ad l
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.nh
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.SH "NAME"
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EVP_CIPHER\-AES \- The AES EVP_CIPHER implementations
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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Support for \s-1AES\s0 symmetric encryption using the \fB\s-1EVP_CIPHER\s0\fR \s-1API.\s0
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.SS "Algorithm Names"
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.IX Subsection "Algorithm Names"
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The following algorithms are available in the \s-1FIPS\s0 provider as well as the
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default provider:
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.ie n .IP """\s-1AES\-128\-CBC"", ""AES\-192\-CBC""\s0 and ""\s-1AES\-256\-CBC""\s0" 4
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.el .IP "``\s-1AES\-128\-CBC'', ``AES\-192\-CBC''\s0 and ``\s-1AES\-256\-CBC''\s0" 4
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.IX Item "AES-128-CBC, AES-192-CBC and AES-256-CBC"
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.PD 0
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.ie n .IP """\s-1AES\-128\-CBC\-CTS"", ""AES\-192\-CBC\-CTS""\s0 and ""\s-1AES\-256\-CBC\-CTS""\s0" 4
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.el .IP "``\s-1AES\-128\-CBC\-CTS'', ``AES\-192\-CBC\-CTS''\s0 and ``\s-1AES\-256\-CBC\-CTS''\s0" 4
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.IX Item "AES-128-CBC-CTS, AES-192-CBC-CTS and AES-256-CBC-CTS"
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.ie n .IP """\s-1AES\-128\-CFB"", ""AES\-192\-CFB"", ""AES\-256\-CFB"", ""AES\-128\-CFB1"", ""AES\-192\-CFB1"", ""AES\-256\-CFB1"", ""AES\-128\-CFB8"", ""AES\-192\-CFB8""\s0 and ""\s-1AES\-256\-CFB8""\s0" 4
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.el .IP "``\s-1AES\-128\-CFB'', ``AES\-192\-CFB'', ``AES\-256\-CFB'', ``AES\-128\-CFB1'', ``AES\-192\-CFB1'', ``AES\-256\-CFB1'', ``AES\-128\-CFB8'', ``AES\-192\-CFB8''\s0 and ``\s-1AES\-256\-CFB8''\s0" 4
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.IX Item "AES-128-CFB, AES-192-CFB, AES-256-CFB, AES-128-CFB1, AES-192-CFB1, AES-256-CFB1, AES-128-CFB8, AES-192-CFB8 and AES-256-CFB8"
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.ie n .IP """\s-1AES\-128\-CTR"", ""AES\-192\-CTR""\s0 and ""\s-1AES\-256\-CTR""\s0" 4
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.el .IP "``\s-1AES\-128\-CTR'', ``AES\-192\-CTR''\s0 and ``\s-1AES\-256\-CTR''\s0" 4
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.IX Item "AES-128-CTR, AES-192-CTR and AES-256-CTR"
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.ie n .IP """\s-1AES\-128\-ECB"", ""AES\-192\-ECB""\s0 and ""\s-1AES\-256\-ECB""\s0" 4
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.el .IP "``\s-1AES\-128\-ECB'', ``AES\-192\-ECB''\s0 and ``\s-1AES\-256\-ECB''\s0" 4
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.IX Item "AES-128-ECB, AES-192-ECB and AES-256-ECB"
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.ie n .IP """\s-1AES\-192\-OFB"", ""AES\-128\-OFB""\s0 and ""\s-1AES\-256\-OFB""\s0" 4
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.el .IP "``\s-1AES\-192\-OFB'', ``AES\-128\-OFB''\s0 and ``\s-1AES\-256\-OFB''\s0" 4
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.IX Item "AES-192-OFB, AES-128-OFB and AES-256-OFB"
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.ie n .IP """\s-1AES\-128\-XTS""\s0 and ""\s-1AES\-256\-XTS""\s0" 4
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.el .IP "``\s-1AES\-128\-XTS''\s0 and ``\s-1AES\-256\-XTS''\s0" 4
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.IX Item "AES-128-XTS and AES-256-XTS"
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.ie n .IP """\s-1AES\-128\-CCM"", ""AES\-192\-CCM""\s0 and ""\s-1AES\-256\-CCM""\s0" 4
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.el .IP "``\s-1AES\-128\-CCM'', ``AES\-192\-CCM''\s0 and ``\s-1AES\-256\-CCM''\s0" 4
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.IX Item "AES-128-CCM, AES-192-CCM and AES-256-CCM"
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.ie n .IP """\s-1AES\-128\-GCM"", ""AES\-192\-GCM""\s0 and ""\s-1AES\-256\-GCM""\s0" 4
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.el .IP "``\s-1AES\-128\-GCM'', ``AES\-192\-GCM''\s0 and ``\s-1AES\-256\-GCM''\s0" 4
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.IX Item "AES-128-GCM, AES-192-GCM and AES-256-GCM"
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.ie n .IP """\s-1AES\-128\-WRAP"", ""AES\-192\-WRAP"", ""AES\-256\-WRAP"", ""AES\-128\-WRAP\-PAD"", ""AES\-192\-WRAP\-PAD"", ""AES\-256\-WRAP\-PAD"", ""AES\-128\-WRAP\-INV"", ""AES\-192\-WRAP\-INV"", ""AES\-256\-WRAP\-INV"", ""AES\-128\-WRAP\-PAD\-INV"", ""AES\-192\-WRAP\-PAD\-INV""\s0 and ""\s-1AES\-256\-WRAP\-PAD\-INV""\s0" 4
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.el .IP "``\s-1AES\-128\-WRAP'', ``AES\-192\-WRAP'', ``AES\-256\-WRAP'', ``AES\-128\-WRAP\-PAD'', ``AES\-192\-WRAP\-PAD'', ``AES\-256\-WRAP\-PAD'', ``AES\-128\-WRAP\-INV'', ``AES\-192\-WRAP\-INV'', ``AES\-256\-WRAP\-INV'', ``AES\-128\-WRAP\-PAD\-INV'', ``AES\-192\-WRAP\-PAD\-INV''\s0 and ``\s-1AES\-256\-WRAP\-PAD\-INV''\s0" 4
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.IX Item "AES-128-WRAP, AES-192-WRAP, AES-256-WRAP, AES-128-WRAP-PAD, AES-192-WRAP-PAD, AES-256-WRAP-PAD, AES-128-WRAP-INV, AES-192-WRAP-INV, AES-256-WRAP-INV, AES-128-WRAP-PAD-INV, AES-192-WRAP-PAD-INV and AES-256-WRAP-PAD-INV"
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.ie n .IP """\s-1AES\-128\-CBC\-HMAC\-SHA1"", ""AES\-256\-CBC\-HMAC\-SHA1"", ""AES\-128\-CBC\-HMAC\-SHA256""\s0 and ""\s-1AES\-256\-CBC\-HMAC\-SHA256""\s0" 4
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.el .IP "``\s-1AES\-128\-CBC\-HMAC\-SHA1'', ``AES\-256\-CBC\-HMAC\-SHA1'', ``AES\-128\-CBC\-HMAC\-SHA256''\s0 and ``\s-1AES\-256\-CBC\-HMAC\-SHA256''\s0" 4
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.IX Item "AES-128-CBC-HMAC-SHA1, AES-256-CBC-HMAC-SHA1, AES-128-CBC-HMAC-SHA256 and AES-256-CBC-HMAC-SHA256"
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.PD
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.PP
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The following algorithms are available in the default provider, but not the
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\&\s-1FIPS\s0 provider:
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.ie n .IP """\s-1AES\-128\-OCB"", ""AES\-192\-OCB""\s0 and ""\s-1AES\-256\-OCB""\s0" 4
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.el .IP "``\s-1AES\-128\-OCB'', ``AES\-192\-OCB''\s0 and ``\s-1AES\-256\-OCB''\s0" 4
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.IX Item "AES-128-OCB, AES-192-OCB and AES-256-OCB"
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.PD 0
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.ie n .IP """\s-1AES\-128\-SIV"", ""AES\-192\-SIV""\s0 and ""\s-1AES\-256\-SIV""\s0" 4
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.el .IP "``\s-1AES\-128\-SIV'', ``AES\-192\-SIV''\s0 and ``\s-1AES\-256\-SIV''\s0" 4
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.IX Item "AES-128-SIV, AES-192-SIV and AES-256-SIV"
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.ie n .IP """\s-1AES\-128\-GCM\-SIV"", ""AES\-192\-GCM\-SIV""\s0 and ""\s-1AES\-256\-GCM\-SIV""\s0" 4
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.el .IP "``\s-1AES\-128\-GCM\-SIV'', ``AES\-192\-GCM\-SIV''\s0 and ``\s-1AES\-256\-GCM\-SIV''\s0" 4
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.IX Item "AES-128-GCM-SIV, AES-192-GCM-SIV and AES-256-GCM-SIV"
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.PD
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.SS "Parameters"
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.IX Subsection "Parameters"
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This implementation supports the parameters described in
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\&\*(L"\s-1PARAMETERS\*(R"\s0 in \fIEVP_EncryptInit\fR\|(3).
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.SH "NOTES"
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.IX Header "NOTES"
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The AES-SIV and AES-WRAP mode implementations do not support streaming. That
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means to obtain correct results there can be only one \fIEVP_EncryptUpdate\fR\|(3)
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or \fIEVP_DecryptUpdate\fR\|(3) call after the initialization of the context.
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.PP
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The AES-XTS implementations allow streaming to be performed, but each
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\&\fIEVP_EncryptUpdate\fR\|(3) or \fIEVP_DecryptUpdate\fR\|(3) call requires each input
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to be a multiple of the blocksize. Only the final \fIEVP_EncryptUpdate()\fR or
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\&\fIEVP_DecryptUpdate()\fR call can optionally have an input that is not a multiple
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of the blocksize but is larger than one block. In that case ciphertext
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stealing (\s-1CTS\s0) is used to fill the block.
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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\&\fIprovider\-cipher\fR\|(7), \s-1\fIOSSL_PROVIDER\-FIPS\s0\fR\|(7), \fIOSSL_PROVIDER\-default\fR\|(7)
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.SH "HISTORY"
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.IX Header "HISTORY"
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The GCM-SIV mode ciphers were added in OpenSSL version 3.2.
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.SH "COPYRIGHT"
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.IX Header "COPYRIGHT"
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Copyright 2021\-2023 The OpenSSL Project Authors. All Rights Reserved.
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.PP
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Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file \s-1LICENSE\s0 in the source distribution or at
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<https://www.openssl.org/source/license.html>.
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