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33df1cfdd5
Reviewed-by: Paul Dale <paul.dale@oracle.com> (Merged from https://github.com/openssl/openssl/pull/11546)
65 lines
1.6 KiB
Plaintext
65 lines
1.6 KiB
Plaintext
=pod
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=head1 NAME
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EVP_PKEY-EC - EVP_PKEY EC keytype and algorithm support
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=head1 DESCRIPTION
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The B<EC> keytype is implemented in OpenSSL's default provider.
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=head2 Common EC parameters
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The following Import/Export types are available for the built-in EC algorithm:
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=over 4
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=item "curve-name" (B<OSSL_PKEY_PARAM_EC_NAME>) <utf8 string>
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The EC curve name.
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=item "use-cofactor-flag" (B<OSSL_PKEY_PARAM_USE_COFACTOR_ECDH>) <integer>
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Enable Cofactor DH (ECC CDH) if this value is 1, otherwise it uses normal EC DH
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if the value is zero. The cofactor variant multiplies the shared secret by the
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EC curve's cofactor (note for some curves the cofactor is 1).
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=for comment The following link should become L<EVP_KEYEXCH-ECDH(7)>
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See also L<provider-keyexch(7)> for the related
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B<OSSL_EXCHANGE_PARAM_EC_ECDH_COFACTOR_MODE> parameter that can be set on a
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per-operation basis.
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=item "pub" (B<OSSL_PKEY_PARAM_PUB_KEY>) <octet string>
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The public key value in EC point format.
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=item "priv" (B<OSSL_PKEY_PARAM_PRIV_KEY>) <unsigned integer>
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The private key value.
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=back
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=head1 EXAMPLES
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An B<EVP_PKEY> context can be obtained by calling:
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EVP_PKEY_CTX *pctx =
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EVP_PKEY_CTX_new_from_name(NULL, "EC", NULL);
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=head1 SEE ALSO
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L<EVP_KEYMGMT(3)>, L<EVP_PKEY(3)>, L<provider-keymgmt(7)>,
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L<EVP_SIGNATURE-ECDSA(7)>, L<EVP_KEYEXCH-ECDH(7)>
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=head1 COPYRIGHT
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Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). 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 LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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