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This implementation is written in endian agnostic C code. No attempt at providing machine specific assembly code has been made. This implementation expands the evptests by including the test cases from RFC 5794 and ARIA official site rather than providing an individual test case. Support for ARIA has been integrated into the command line applications, but not TLS. Implemented modes are CBC, CFB1, CFB8, CFB128, CTR, ECB and OFB128. Reviewed-by: Andy Polyakov <appro@openssl.org> Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/2337)
119 lines
3.1 KiB
Plaintext
119 lines
3.1 KiB
Plaintext
=pod
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=head1 NAME
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genrsa - generate an RSA private key
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=head1 SYNOPSIS
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B<openssl> B<genrsa>
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[B<-help>]
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[B<-out filename>]
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[B<-passout arg>]
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[B<-aes128>]
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[B<-aes192>]
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[B<-aes256>]
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[B<-aria128>]
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[B<-aria192>]
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[B<-aria256>]
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[B<-camellia128>]
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[B<-camellia192>]
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[B<-camellia256>]
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[B<-des>]
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[B<-des3>]
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[B<-idea>]
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[B<-f4>]
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[B<-3>]
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[B<-rand file(s)>]
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[B<-engine id>]
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[B<numbits>]
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=head1 DESCRIPTION
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The B<genrsa> command generates an RSA private key.
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=head1 OPTIONS
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=over 4
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=item B<-help>
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Print out a usage message.
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=item B<-out filename>
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Output the key to the specified file. If this argument is not specified then
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standard output is used.
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=item B<-passout arg>
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the output file password source. For more information about the format of B<arg>
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see the B<PASS PHRASE ARGUMENTS> section in L<openssl(1)>.
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=item B<-aes128|-aes192|-aes256|-aria128|-aria192|-aria256|-camellia128|-camellia192|-camellia256|-des|-des3|-idea>
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These options encrypt the private key with specified
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cipher before outputting it. If none of these options is
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specified no encryption is used. If encryption is used a pass phrase is prompted
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for if it is not supplied via the B<-passout> argument.
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=item B<-F4|-3>
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the public exponent to use, either 65537 or 3. The default is 65537.
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=item B<-rand file(s)>
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a file or files containing random data used to seed the random number
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generator, or an EGD socket (see L<RAND_egd(3)>).
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Multiple files can be specified separated by an OS-dependent character.
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The separator is B<;> for MS-Windows, B<,> for OpenVMS, and B<:> for
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all others.
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=item B<-engine id>
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specifying an engine (by its unique B<id> string) will cause B<genrsa>
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to attempt to obtain a functional reference to the specified engine,
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thus initialising it if needed. The engine will then be set as the default
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for all available algorithms.
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=item B<numbits>
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the size of the private key to generate in bits. This must be the last option
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specified. The default is 512.
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=back
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=head1 NOTES
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RSA private key generation essentially involves the generation of two prime
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numbers. When generating a private key various symbols will be output to
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indicate the progress of the generation. A B<.> represents each number which
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has passed an initial sieve test, B<+> means a number has passed a single
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round of the Miller-Rabin primality test. A newline means that the number has
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passed all the prime tests (the actual number depends on the key size).
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Because key generation is a random process the time taken to generate a key
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may vary somewhat.
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=head1 BUGS
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A quirk of the prime generation algorithm is that it cannot generate small
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primes. Therefore the number of bits should not be less that 64. For typical
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private keys this will not matter because for security reasons they will
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be much larger (typically 1024 bits).
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=head1 SEE ALSO
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L<gendsa(1)>
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=head1 COPYRIGHT
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Copyright 2000-2017 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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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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