178 lines
5.4 KiB
Plaintext
178 lines
5.4 KiB
Plaintext
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.\" ========================================================================
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.\"
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.IX Title "EVP_KEYEXCH-X25519 7ossl"
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.TH EVP_KEYEXCH-X25519 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_KEYEXCH\-X25519,
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EVP_KEYEXCH\-X448
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\&\- X25519 and X448 Key Exchange algorithm support
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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Key exchange support for the \fBX25519\fR and \fBX448\fR key types.
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.SS "Key exchange parameters"
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.IX Subsection "Key exchange parameters"
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.ie n .IP """pad"" (\fB\s-1OSSL_EXCHANGE_PARAM_PAD\s0\fR) <unsigned integer>" 4
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.el .IP "``pad'' (\fB\s-1OSSL_EXCHANGE_PARAM_PAD\s0\fR) <unsigned integer>" 4
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.IX Item "pad (OSSL_EXCHANGE_PARAM_PAD) <unsigned integer>"
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See \*(L"Common Key Exchange parameters\*(R" in \fIprovider\-keyexch\fR\|(7).
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.SH "EXAMPLES"
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.IX Header "EXAMPLES"
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Keys for the host and peer can be generated as shown in
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\&\*(L"Examples\*(R" in \s-1\fIEVP_PKEY\-X25519\s0\fR\|(7).
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.PP
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The code to generate a shared secret is identical to
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\&\*(L"Examples\*(R" in \s-1\fIEVP_KEYEXCH\-DH\s0\fR\|(7).
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.SH "SEE ALSO"
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.IX Header "SEE ALSO"
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\&\s-1\fIEVP_PKEY\-FFC\s0\fR\|(7),
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\&\s-1\fIEVP_PKEY\-DH\s0\fR\|(7)
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\&\s-1\fIEVP_PKEY\s0\fR\|(3),
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\&\fIprovider\-keyexch\fR\|(7),
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\&\fIprovider\-keymgmt\fR\|(7),
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\&\fIOSSL_PROVIDER\-default\fR\|(7),
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\&\s-1\fIOSSL_PROVIDER\-FIPS\s0\fR\|(7),
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.SH "COPYRIGHT"
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.IX Header "COPYRIGHT"
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Copyright 2020 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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