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speed(1ssl) [v7 man page]

SPEED(1SSL)							      OpenSSL							       SPEED(1SSL)

NAME
openssl-speed, speed - test library performance SYNOPSIS
openssl speed [-help] [-engine id] [-elapsed] [-evp algo] [-decrypt] [-rand file...] [-writerand file] [-primes num] [-seconds num] [-bytes num] [algorithm...] DESCRIPTION
This command is used to test the performance of cryptographic algorithms. To see the list of supported algorithms, use the list --digest-commands or list --cipher-commands command. The global CSPRNG is denoted by the rand algorithm name. OPTIONS
-help Print out a usage message. -engine id Specifying an engine (by its unique id string) will cause speed to attempt to obtain a functional reference to the specified engine, thus initialising it if needed. The engine will then be set as the default for all available algorithms. -elapsed When calculating operations- or bytes-per-second, use wall-clock time instead of CPU user time as divisor. It can be useful when testing speed of hardware engines. -evp algo Use the specified cipher or message digest algorithm via the EVP interface. If algo is an AEAD cipher, then you can pass <-aead> to benchmark a TLS-like sequence. And if algo is a multi-buffer capable cipher, e.g. aes-128-cbc-hmac-sha1, then -mb will time multi- buffer operation. -decrypt Time the decryption instead of encryption. Affects only the EVP testing. -rand file... A file or files containing random data used to seed the random number generator. Multiple files can be specified separated by an OS- dependent character. The separator is ; for MS-Windows, , for OpenVMS, and : for all others. [-writerand file] Writes random data to the specified file upon exit. This can be used with a subsequent -rand flag. -primes num Generate a num-prime RSA key and use it to run the benchmarks. This option is only effective if RSA algorithm is specified to test. -seconds num Run benchmarks for num seconds. -bytes num Run benchmarks on num-byte buffers. Affects ciphers, digests and the CSPRNG. [zero or more test algorithms] If any options are given, speed tests those algorithms, otherwise a pre-compiled grand selection is tested. COPYRIGHT
Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved. Licensed under the OpenSSL license (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>. 1.1.1a 2018-12-18 SPEED(1SSL)

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GENRSA(1SSL)                                                          OpenSSL                                                         GENRSA(1SSL)

NAME
openssl-genrsa, genrsa - generate an RSA private key SYNOPSIS
openssl genrsa [-help] [-out filename] [-passout arg] [-aes128] [-aes192] [-aes256] [-aria128] [-aria192] [-aria256] [-camellia128] [-camellia192] [-camellia256] [-des] [-des3] [-idea] [-f4] [-3] [-rand file...] [-writerand file] [-engine id] [-primes num] [numbits] DESCRIPTION
The genrsa command generates an RSA private key. OPTIONS
-help Print out a usage message. -out filename Output the key to the specified file. If this argument is not specified then standard output is used. -passout arg The output file password source. For more information about the format of arg see the PASS PHRASE ARGUMENTS section in openssl(1). -aes128, -aes192, -aes256, -aria128, -aria192, -aria256, -camellia128, -camellia192, -camellia256, -des, -des3, -idea These options encrypt the private key with specified cipher before outputting it. If none of these options is specified no encryption is used. If encryption is used a pass phrase is prompted for if it is not supplied via the -passout argument. -F4|-3 The public exponent to use, either 65537 or 3. The default is 65537. -rand file... A file or files containing random data used to seed the random number generator. Multiple files can be specified separated by an OS- dependent character. The separator is ; for MS-Windows, , for OpenVMS, and : for all others. [-writerand file] Writes random data to the specified file upon exit. This can be used with a subsequent -rand flag. -engine id Specifying an engine (by its unique id string) will cause genrsa to attempt to obtain a functional reference to the specified engine, thus initialising it if needed. The engine will then be set as the default for all available algorithms. -primes num Specify the number of primes to use while generating the RSA key. The num parameter must be a positive integer that is greater than 1 and less than 16. If num is greater than 2, then the generated key is called a 'multi-prime' RSA key, which is defined in RFC 8017. numbits The size of the private key to generate in bits. This must be the last option specified. The default is 2048 and values less than 512 are not allowed. NOTES
RSA private key generation essentially involves the generation of two or more prime numbers. When generating a private key various symbols will be output to indicate the progress of the generation. A . represents each number which has passed an initial sieve test, + means a number has passed a single round of the Miller-Rabin primality test, * means the current prime starts a regenerating progress due to some failed tests. A newline means that the number has passed all the prime tests (the actual number depends on the key size). Because key generation is a random process the time taken to generate a key may vary somewhat. But in general, more primes lead to less generation time of a key. SEE ALSO
gendsa(1) COPYRIGHT
Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved. Licensed under the OpenSSL license (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>. 1.1.1a 2018-12-18 GENRSA(1SSL)
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