---
name: "Crypt::RSA::Parse"
section: "3pm"
platform: "linux"
package: "libcrypt-rsa-parse-perl"
version: "0.044-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Crypt::RSA::Parse"
---

# Crypt::RSA::Parse(3pm)

Parse RSA keys

## NAME

Crypt::RSA::Parse - Parse RSA keys

## SYNOPSIS

```
    #General-purpose, native RSA or PKCS8 (DER or PEM)
    my $public_rsa = Crypt::RSA::Parse::public($key_str);
    my $private_rsa = Crypt::RSA::Parse::private($private_key_str);
    $public_rsa->exponent();    #alias E()
    $public_rsa->modulus();     #isa Math::BigInt, alias N()
    $public_rsa->size();        #i.e., the modulus length in bits
    $private_rsa->version();        #usually 0
    $private_rsa->modulus();        #isa Math::BigInt, alias N()
    $private_rsa->size();           #i.e., the modulus length in bits
    $private_rsa->publicExponent();     #same as public “exponent”, alias E()
    $private_rsa->privateExponent();    #isa Math::BigInt, alias D()
    $private_rsa->prime1();             #isa Math::BigInt, alias P()
    $private_rsa->prime2();             #isa Math::BigInt, alias Q()
    $private_rsa->exponent1();          #isa Math::BigInt, alias DP()
    $private_rsa->exponent2();          #isa Math::BigInt, alias DQ()
    $private_rsa->coefficient();        #isa Math::BigInt, alias QINV()
    #Only checks PKCS8 (DER or PEM)
    $public_rsa = Crypt::RSA::Parse::public_pkcs8($pkcs8_str);
    $private_rsa = Crypt::RSA::Parse::private_pkcs8($pkcs8_str);
    {
        #If, for whatever reason, you don’t like MIME::Base64,
        #then customize this. The module must have a decode() function.
        #
        local $Crypt::RSA::Parse::BASE64_MODULE = '..';
        Crypt::RSA::Parse::...
    }
```

## DEPRECATION NOTICE

**IMPORTANT:** This distribution is no longer maintained. See its successor, Crypt::Perl, for a much more comprehensive toolkit.

## DESCRIPTION

Not much else to say: it parses RSA keys for useful information!

The public keys are represented via the `"Crypt::RSA::Parse::Public"` class, while private keys are represented via `"Crypt::RSA::Parse::Private"`.

## AUTHOR

```
    Felipe M. L. Gasper
    CPAN ID: FELIPE
```

## REPOSITORY

```
    https://github.com/FGasper/p5-Crypt-RSA-Parse
```

## COPYRIGHT

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

The full text of the license can be found in the LICENSE file included with this module.