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@@ -2,16 +2,18 @@
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=head1 NAME
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-Ed25519 - EVP_PKEY Ed25519 support
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+Ed25519,
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+Ed448
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+- EVP_PKEY Ed25519 and Ed448 support
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=head1 DESCRIPTION
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-The B<Ed25519> EVP_PKEY implementation supports key generation, one shot
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-digest sign and digest verify using PureEdDSA and B<Ed25519> (see RFC8032).
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-It has associated private and public key formats compatible with
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+The B<Ed25519> and B<Ed448> EVP_PKEY implementation supports key generation,
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+one-shot digest sign and digest verify using PureEdDSA and B<Ed25519> or B<Ed448>
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+(see RFC8032). It has associated private and public key formats compatible with
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draft-ietf-curdle-pkix-04.
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-No additional parameters can be set during key generation one shot signing or
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+No additional parameters can be set during key generation one-shot signing or
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verification. In particular, because PureEdDSA is used, when signing or
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verifying a digest must B<NOT> be specified.
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@@ -19,20 +21,24 @@ verifying a digest must B<NOT> be specified.
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The PureEdDSA algorithm does not support the streaming mechanism
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of other signature algorithms using, for example, EVP_DigestUpdate().
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-The message to sign or verify must be passed using the one shot
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+The message to sign or verify must be passed using the one-shot
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EVP_DigestSign() asn EVP_DigestVerify() functions.
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When calling EVP_DigestSignInit() or EVP_DigestSignUpdate() the
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digest parameter B<MUST> be set to B<NULL>.
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Applications wishing to sign certificates (or other structures such as
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-CRLs or certificate requests) using Ed25519 can either use X509_sign()
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+CRLs or certificate requests) using Ed25519 or Ed448 can either use X509_sign()
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or X509_sign_ctx() in the usual way.
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A context for the B<Ed25519> algorithm can be obtained by calling:
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EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_ED25519, NULL);
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+For the B<Ed448> algorithm a context can be obtained by calling:
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+
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+ EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_ED448, NULL);
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+
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=head1 EXAMPLE
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This example generates an B<ED25519> private key and writes it to standard
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@@ -57,7 +63,7 @@ L<EVP_DigestVerifyInit(3)>,
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=head1 COPYRIGHT
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-Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
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+Copyright 2017-2018 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (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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