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体验新版 GitCode,发现更多精彩内容 >>
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0dd5b94a
编写于
4月 16, 2014
作者:
D
Dr. Stephen Henson
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电子邮件补丁
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Document -debug_decrypt option.
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@@ -92,6 +92,11 @@ decrypt mail using the supplied certificate and private key. Expects an
encrypted mail message in MIME format for the input file. The decrypted mail
is written to the output file.
=item B<-debug_decrypt>
this option sets the B<CMS_DEBUG_DECRYPT> flag. This option should be used
with caution: see the notes section below.
=item B<-sign>
sign mail using the supplied certificate and private key. Input file is
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@@ -469,6 +474,16 @@ Streaming is always used for the B<-sign> operation with detached data but
since the content is no longer part of the CMS structure the encoding
remains DER.
If the B<-decrypt> option is used without a recipient certificate then an
attempt is made to locate the recipient by trying each potential recipient
in turn using the supplied private key. To thwart the MMA attack
(Bleichenbacher's attack on PKCS #1 v1.5 RSA padding) all recipients are
tried whether they succeed or not and if no recipients match the message
is "decrypted" using a random key which will typically output garbage.
The B<-debug_decrypt> option can be used to disable the MMA attack protection
and return an error if no recipient can be found: this option should be used
with caution. For a fuller description see L<CMS_decrypt(3)|CMS_decrypt(3)>).
=head1 EXIT CODES
=over 4
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