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Jwcrypto Key Generate From Modulus

 

I want to generate an RSA public public key file using openssl (or other tools) having public modulus and exponent, so i can use it later to encrypt files i have this: the modulus: '. R1(config)# crypto key generate rsa modulus 1024 The name for the keys will be: R1.CCNA-lab.com% The key modulus size is 1024 bits% Generating 1024 bit RSA keys, keys will be non-exportable.

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Latest version
  1. Nov 05, 2018  JWCrypto. An implementation of the JOSE Working Group documents: RFC 7515 - JSON Web Signature (JWS) RFC 7516 - JSON Web Encryption (JWE) RFC 7517 - JSON Web Key (JWK) RFC 7518 - JSON Web Algorithms (JWA) RFC 7519 - JSON Web Token (JWT) RFC 7520 - Examples of Protecting Content Using JSON Object Signing and Encryption (JOSE) Documentation.
  2. The Cisco NX-OS software allows you to generate RSA key pairs with a configurable key size (or modulus). The default key size is 512. You can also configure an RSA key-pair label. The default key label is the device fully qualified domain name (FQDN).

Released:

Module for generating and verifying JSON Web Tokens

Project description

Module for generating and verifying JSON Web Tokens.

  • Note: From version 2.0.1 the namespace has changed from jwt to python_jwt, in order to avoid conflict with PyJWT.
  • Note: Versions 1.0.0 and later fix a vulnerability in JSON Web Token verification so please upgrade if you're using this functionality. The API has changed so you will need to update your application. verify_jwt now requires you to specify which signature algorithms are allowed.
  • Uses jwcrypto to do the heavy lifting.
  • Supports RS256, RS384, RS512, PS256, PS384, PS512, HS256, HS384, HS512 and none signature algorithms.
  • Unit tests, including tests for interoperability with node-jsjws.
  • Supports Python 2,7 and 3.6+. Note:generate_jwt returns the token as a Unicode string, even on Python 2.7.

Example:

Key Generate Software

The API is described here.

Installation

Another Example

You can read and write keys from and to PEM-format strings:

Licence

Tests

Lint

Code Coverage

coverage.py results are available here.

Coveralls page is here.

Benchmarks

Here are some results on a laptop with an Intel Core i5-4300M 2.6Ghz CPU and 8Gb RAM running Ubuntu 17.04.

Generate Keyuser (ns)sys (ns)real (ns)
RSA103,100,000200,000103,341,537
Generate Tokenuser (ns)sys (ns)real (ns)
HS256220,0000226,478
HS384220,0000218,233
HS512230,0000225,823
PS2561,530,00010,0001,536,235
PS3841,550,00001,549,844
PS5121,520,00010,0001,524,844
RS2561,520,00010,0001,524,565
RS3841,530,00001,528,074
RS5121,510,00001,526,089
Load Keyuser (ns)sys (ns)real (ns)
RSA210,0003,000210,791
Verify Tokenuser (ns)sys (ns)real (ns)
HS256100,0000101,478
HS384100,00010,000103,014
HS512110,0000104,323
PS256230,0000231,058
PS384240,0000237,551
PS512240,0000232,450
RS256230,0000227,737
RS384230,0000230,698
RS512230,0000228,624

Release historyRelease notifications

3.2.6

3.2.5

3.2.4

3.2.3

3.2.2

3.2.1

3.2.0

3.1.0

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3.0.0

2.0.2

2.0.1

2.0.0

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  • October 2, 2015
  • Posted by: Syed Shujaat
  • Category: Cisco, Networking Solutions

Use this command to generate RSA key pairs for your Cisco device (such as a router). keys are generated in pairs–one public RSA key and one private RSA key.

If your router already has RSA keys when you issue this command, you will be warned and prompted to replace the existing keys with new keys.

NOTE: Before issuing this command, ensure that your router has a hostname and IP domain name configured (with the hostname and ipdomain-name commands).

You will be unable to complete the cryptokeygeneratersacommand without a hostname and IP domain name. (This situation is not true when you generate only a named key pair.)

Here are the steps to Enable SSH and Crypto Key setup : 2 config must requried for SSH

1 Setup Local VTY line User ID and password

router (Config) # Line VTY 0 15

router (Config-line)# login local

router (Config-line)# Exit

!!! create local login ID/Pass

router (Config)# username [loginid] password [cisco]

router (Config)# username loginid1 password cisco1

2. router (Config)# ip domain-name example.com

router (Config)# crypto key generate rsa

how many bits in the modulus [512] :1024

router (Config)# ip ssh version2

router (Config)# CTRL Z

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Note

Secure Shell (SSH) may generate an additional RSA key pair if you generate a key pair on a router having no RSA keys. The additional key pair is used only by SSH and will have a name such as {router_FQDN }.server.

For example, if a router name is “router1.cisco.com,” the key name is “router1.cisco.com.server.”

This command is not saved in the router configuration; however, the RSA keys generated by this command are saved in the private configuration in NVRAM (which is never displayed to the user or backed up to another device) the next time the configuration is written to NVRAM.

Modulus Length

When you generate RSA keys, you will be prompted to enter a modulus length. The longer the modulus, the stronger the security. However, a longer modules take longer to generate (see the table below for sample times) and takes longer to use.

The size of Key Modulus range from 360 to 2048. Hack the box key generator. Choosing modulus greater than 512 will take longer time.

Router360 bits512 bits1024 bits2048 bits (maximum)
Cisco 250011 seconds20 seconds4 minutes, 38 secondsMore than 1 hour
Cisco 4700Less than 1 second1 second4 seconds50 seconds

Cisco IOS software does not support a modulus greater than 4096 bits. A length of less than 512 bits is normally not recommended. In certain situations, the shorter modulus may not function properly with IKE, so we recommend using a minimum modulus of 2048 bits.

Key Generator

Syntax Description : Optional Strings to embed with SSH Crypto key

general-keys(Optional) Specifies that a general-purpose key pair will be generated, which is the default.
usage-keys(Optional) Specifies that two RSA special-usage key pairs, one encryption pair and one signature pair, will be generated.
signature(Optional) Specifies that the RSA public key generated will be a signature special usage key.
encryption(Optional) Specifies that the RSA public key generated will be an encryption special usage key.
labelkey-label(Optional) Specifies the name that is used for an RSA key pair when they are being exported.If a key label is not specified, the fully qualified domain name (FQDN) of the router is used.
exportable(Optional) Specifies that the RSA key pair can be exported to another Cisco device, such as a router.
modulusmodulus-size(Optional) Specifies the IP size of the key modulus.By default, the modulus of a certification authority (CA) key is 1024 bits. The recommended modulus for a CA key is 2048 bits. The range of a CA key modulus is from 350 to 4096 bits.
Note Effective with Cisco IOS XE Release 2.4 and Cisco IOS Release 15.1(1)T, the maximum key size was expanded to 4096 bits for private key operations. The maximum for private key operations prior to these releases was 2048 bits.
storagedevicename:(Optional) Specifies the key storage location. The name of the storage device is followed by a colon (:).
redundancy(Optional) Specifies that the key should be synchronized to the standby CA.
ondevicename:(Optional) Specifies that the RSA key pair will be created on the specified device, including a Universal Serial Bus (USB) token, local disk, or NVRAM. The name of the device is followed by a colon (:).Keys created on a USB token must be 2048 bits or less.
CommandDescription
copyCopies any file from a source to a destination, use the copy command in privileged EXEC mode.
cryptokeystorageSets the default storage location for RSA key pairs.
debugcryptoengineDisplays debug messages about crypto engines.
hostnameSpecifies or modifies the hostname for the network server.
ipdomain-nameDefines a default domain name to complete unqualified hostnames (names without a dotted-decimal domain name).
showcryptokeymypubkeyrsaDisplays the RSA public keys of your router.
show crypto pki certificatesDisplays information about your PKI certificate, certification authority, and any registration authority certificates.

Jw Crypto Key Generate From Modulus Chart