1. Generate Sha512 Key Pair Command Line Code
2. Generate Sha512 Key Pair Command Line For Mac
3. Generate Sha512 Key Pair Command Line Number

In order to be able to create a digital signature, you need a private key. (Its corresponding public key will be needed in order to verify the authenticity of the signature.)

How to create an SHA-512 hashed password for shadow? Ask Question Asked 8 years, 4 months ago. Given a potentially 'lost' password, I can use MKPASSWD and the salt, to generate the SHA512 hash, and confirm/deny a list of candidate passwords. Ignore my ssh key, don't prompt me for a passphrase. Jul 09, 2019 Can I generate a new Private Key for my Certificate if I lose the old one? The Private Key is bound to it automatically if the CSR/Key pair has been generated on the same server. If you need to obtain the Private Key to install your Certificate on a different server, you can export the key in a password protected PFX (PKCS#12) file. HMAC Generator / Tester Tool. Computes a Hash-based message authentication code (HMAC) using a secret key. A HMAC is a small set of data that helps authenticate the nature of message; it protects the integrity and the authenticity of the message. The next section shows a full example of what each key file should look like. The Generated Key Files. The generated files are base64-encoded encryption keys in plain text format. If you select a password for your private key, its file will be encrypted with your password. Be sure to remember this password or the key pair becomes useless. Hash Console is the all-in-one command-line based tool to quickly generate more than 15 different type of hashes. It can generate hash for any given file or simple text.

In some cases the key pair (private key and corresponding public key) are already available in files. In that case the program can import and use the private key for signing, as shown in Weaknesses and Alternatives.

In other cases the program needs to generate the key pair. A key pair is generated by using the KeyPairGenerator class.

In this example you will generate a public/private key pair for the Digital Signature Algorithm (DSA). You will generate keys with a 1024-bit length.

Generating a key pair requires several steps:

Create a Key Pair Generator

The first step is to get a key-pair generator object for generating keys for the DSA signature algorithm.

As with all engine classes, the way to get a KeyPairGenerator object for a particular type of algorithm is to call the getInstance static factory method on the KeyPairGenerator class. This method has two forms, both of which hava a String algorithm first argument; one form also has a String provider second argument.

A caller may thus optionally specify the name of a provider, which will guarantee that the implementation of the algorithm requested is from the named provider. The sample code of this lesson always specifies the default SUN provider built into the JDK.

Put the following statement after the

line in the file created in the previous step, Prepare Initial Program Structure:

Initialize the Key Pair Generator

The next step is to initialize the key pair generator. All key pair generators share the concepts of a keysize and a source of randomness. The KeyPairGenerator class has an initialize method that takes these two types of arguments.

The keysize for a DSA key generator is the key length (in bits), which you will set to 1024.

The source of randomness must be an instance of the SecureRandom class that provides a cryptographically strong random number generator (RNG). For more information about SecureRandom, see the SecureRandom API Specification and the Java Cryptography Architecture Reference Guide .

The following example requests an instance of SecureRandom that uses the SHA1PRNG algorithm, as provided by the built-in SUN provider. The example then passes this SecureRandom instance to the key-pair generator initialization method.

Some situations require strong random values, such as when creating high-value and long-lived secrets like RSA public and private keys. To help guide applications in selecting a suitable strong SecureRandom implementation, starting from JDK 8 Java distributions include a list of known strong SecureRandom implementations in the securerandom.strongAlgorithms property of the java.security.Security class. When you are creating such data, you should consider using SecureRandom.getInstanceStrong(), as it obtains an instance of the known strong algorithms.

Generate the Pair of Keys

The final step is to generate the key pair and to store the keys in PrivateKey and PublicKey objects.

Generate Sha512 Key Pair Command Line Code

How to Generate a Key Pair by Using the pktool genkeypair Command

Some applications require a public/private key pair. In this procedure, you create these keypairs and store them.

1. (Optional)If you plan to use a keystore, create the keystore.
   • To create and initialize a PKCS #11 keystore, see How to Generate aPassphrase by Using the pktool setpin Command.
   • To create and initialize an NSS keystore, see Example 4–5.
2. Create the key pair.

   Use one of the following methods.

   • Create the key pair and store the key pair in a file.

     File-based keys are created for applications that read keys directly from files on the disk.Typically, applications that directly use OpenSSL cryptographic libraries require that you store thekeys and certificates for the application in files.

     Note - The file keystore does not support elliptic curve (ec)keys and certificates.

     keystore=file

     The value file specifies the file type of storage location for thekey.

     outkey=key-filename

     Specifies the name of the file where the key pair is stored.

     format=der pem

     Specifies the encoding format of the key pair. der output is binary, andpem output is ASCII.

     keytype=rsa dsa

     Specifies the type of key pair that can be stored in a file keystore. Fordefinitions, see DSA and RSA.

     keylen=key-size

     Specifies the length of the key in bits. The number must be divisible by 8. To determinepossible key sizes, use the cryptoadm list -vm command.

   • Create the key pair and store it in a PKCS #11 keystore.

     You must complete Step 1 before using thismethod.

     The PKCS #11 keystore is used to store objects on a hardware device. The device could be aSun Crypto Accelerator 6000 card, a trusted platform module (TPM) device, or a smart card that is plugged into theCryptographic Framework. PKCS #11 can also be used to store objects in thesofttoken, or software-based token, which stores the objects in a privatesubdirectory on the disk. For more information, see the pkcs11_softtoken(5) man page.

     You can retrieve the key pair from the keystore by a label that you specify.

     label=key-label

     Specifies a label for the key pair. The key pair can be retrieved from the keystore by itslabel.

     token=token[:manuf[:serial]]

     Specifies the token name. By default, the token name is Sun Software PKCS#11softtoken.

     keytype=rsa dsa ec [curve=ECC-Curve-Name]

     Specifies the keypair type. For the elliptic curve (ec) type, optionallyspecifies a curve name. Curve names are listed as output to the listcurvesoption.

     keylen=key-size

     Specifies the length of the key in bits. The number must be divisible by 8.

     listcurves

     Lists the elliptic curve names that can be used as values to the curve=option for an ec key type.

   • Generate the key pair and store it in an NSS keystore.

     The NSS keystore is used by servers that rely on NSS as their primary cryptographicinterface.

     You must complete Step 1 before using thismethod.

     keystore=nss

     The value nss specifies the NSS type of storage location for thekey.

     label=nickname

     Specifies a label for the key pair. The key pair can be retrieved from the keystore by itslabel.

     token=token[:manuf[:serial]]

     Specifies the token name. By default, the token is Sun Software PKCS#11softtoken.

     dir=directory

     Specifies the directory path to the NSS database. By default,directory is the current directory.

     prefix=database-prefix

     Specifies the prefix to the NSS database. The default is no prefix.

     keytype=rsa dsa ec [curve=ECC-Curve-Name]

     Specifies the keypair type. For the elliptic curve type, optionally specifies a curve name.Curve names are listed as output to the listcurves option.

     keylen=key-size

     Specifies the length of the key in bits. The number must be divisible by 8.

     listcurves

     Lists the elliptic curve names that can be used as values to the curve=option for an ec key type.

3. (Optional)Verify that the key exists.

   Use one of the following commands, depending on where you stored the key:

   • Verify the key in the key-filename file.
   • Verify the key in the PKCS #11 keystore.
   • Verify the key in the NSS keystore.

Example 4-6 Creating a Key Pair by Using the

Generate Sha512 Key Pair Command Line For Mac

pktool Command

In the following example, a user creates a PKCS #11 keystore for the first time. Afterdetermining the key sizes for RSA key pairs, the user then generates a key pair for an application.Finally, the user verifies that the key pair is in the keystore. The user notes that the secondinstance of the RSA key pair can be stored on hardware. Because the user does not specify atoken argument, the key pair is stored as a Sun Software PKCS#11softtoken.

Example 4-7

Generate Sha512 Key Pair Command Line Number

Creating a Key Pair That Uses the Elliptic Curve Algorithm

In the following example, a user adds an elliptic curve (ec) key pair tothe keystore, specifies a curve name, and verifies that the key pair is in the keystore.