201 lines
6.5 KiB
Plaintext
201 lines
6.5 KiB
Plaintext
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.\" ========================================================================
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.\"
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.IX Title "EVP_KDF-PVKKDF 7ossl"
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.TH EVP_KDF-PVKKDF 7ossl "2024-10-22" "3.4.0" "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_KDF\-PVKKDF \- The PVK EVP_KDF implementation
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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Support for computing the \fB\s-1PVK KDF\s0\fR PIN-based \s-1KDF\s0 through the \fB\s-1EVP_KDF\s0\fR
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\&\s-1API.\s0
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.PP
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The \s-1EVP_KDF\-PVKKDF\s0 algorithm implements a \s-1PVK\s0 PIN-based key
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derivation function; it derives a key from a password using a salt.
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.SS "Identity"
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.IX Subsection "Identity"
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\&\*(L"\s-1PVKKDF\*(R"\s0 is the name for this implementation; it
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can be used with the \fBEVP_KDF_fetch()\fR function.
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.SS "Supported parameters"
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.IX Subsection "Supported parameters"
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The supported parameters are:
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.ie n .IP """pass"" (\fB\s-1OSSL_KDF_PARAM_PASSWORD\s0\fR) <octet string>" 4
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.el .IP "``pass'' (\fB\s-1OSSL_KDF_PARAM_PASSWORD\s0\fR) <octet string>" 4
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.IX Item "pass (OSSL_KDF_PARAM_PASSWORD) <octet string>"
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.PD 0
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.ie n .IP """salt"" (\fB\s-1OSSL_KDF_PARAM_SALT\s0\fR) <octet string>" 4
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.el .IP "``salt'' (\fB\s-1OSSL_KDF_PARAM_SALT\s0\fR) <octet string>" 4
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.IX Item "salt (OSSL_KDF_PARAM_SALT) <octet string>"
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.ie n .IP """properties"" (\fB\s-1OSSL_KDF_PARAM_PROPERTIES\s0\fR) <\s-1UTF8\s0 string>" 4
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.el .IP "``properties'' (\fB\s-1OSSL_KDF_PARAM_PROPERTIES\s0\fR) <\s-1UTF8\s0 string>" 4
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.IX Item "properties (OSSL_KDF_PARAM_PROPERTIES) <UTF8 string>"
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.ie n .IP """digest"" (\fB\s-1OSSL_KDF_PARAM_DIGEST\s0\fR) <\s-1UTF8\s0 string>" 4
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.el .IP "``digest'' (\fB\s-1OSSL_KDF_PARAM_DIGEST\s0\fR) <\s-1UTF8\s0 string>" 4
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.IX Item "digest (OSSL_KDF_PARAM_DIGEST) <UTF8 string>"
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.PD
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These parameters work as described in \*(L"\s-1PARAMETERS\*(R"\s0 in \s-1\fBEVP_KDF\s0\fR\|(3).
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.SH "NOTES"
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.IX Header "NOTES"
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A typical application of this algorithm is to derive keying material for an
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encryption algorithm from a password in the \*(L"pass\*(R" and a salt in \*(L"salt\*(R".
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.PP
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No assumption is made regarding the given password; it is simply treated as a
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byte sequence.
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.PP
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The legacy provider needs to be available in order to access this algorithm.
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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\&\s-1\fBEVP_KDF\s0\fR\|(3),
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\&\fBEVP_KDF_CTX_new\fR\|(3),
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\&\fBEVP_KDF_CTX_free\fR\|(3),
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\&\fBEVP_KDF_CTX_set_params\fR\|(3),
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\&\fBEVP_KDF_derive\fR\|(3),
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\&\*(L"\s-1PARAMETERS\*(R"\s0 in \s-1\fBEVP_KDF\s0\fR\|(3),
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\&\fBOSSL_PROVIDER\-legacy\fR\|(7)
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.SH "HISTORY"
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.IX Header "HISTORY"
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This functionality was added in OpenSSL 3.2.
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.SH "COPYRIGHT"
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.IX Header "COPYRIGHT"
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Copyright 2021 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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