Crypto Key Generate Rsa Meaning
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- Feb 17, 2018 Router(config)# crypto key generate rsa usage-keys The name for the keys will be: myrouter.example.com Choose the size of the key modulus in the range of 360 to 2048 for your Signature Keys. Choosing a key modulus greater than 512 may take a few minutes.
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Tengo un problema al querer configurar un tunnel con PKI Yo genero una llave de 1024 exportable para una VPN crypto key generate rsa exportable modulus 10 66020. RSA is an asymmetric encryption algorithm. With a given key pair, data that is encrypted with one key can only be decrypted by the other. This is useful for encrypting data between a large number of parties; only one key pair per person need exist.
The BCryptGenerateKeyPair function creates an empty public/private key pair. After you create a key by using this function, you can use the BCryptSetProperty function to set its properties; however, the key cannot be used until the BCryptFinalizeKeyPair function is called.
Syntax
Parameters
hAlgorithm
Handle of an algorithm provider that supports signing, asymmetric encryption, or key agreement. This handle must have been created by using the BCryptOpenAlgorithmProvider function.
/esxi-51-0-license-key-generator.html. phKey
A pointer to a BCRYPT_KEY_HANDLE that receives the handle of the key. This handle is used in subsequent functions that require a key, such as BCryptEncrypt. This handle must be released when it is no longer needed by passing it to the BCryptDestroyKey function.
/linux-generate-ssh-public-key.html. dwLength
The length, in bits, of the key. Algorithm providers have different key size restrictions for each standard asymmetric algorithm.
| Algorithm identifier | Meaning |
|---|---|
| The key size must be greater than or equal to 512 bits, less than or equal to 4096 bits, and must be a multiple of 64. |
| Prior to Windows 8, the key size must be greater than or equal to 512 bits, less than or equal to 1024 bits, and must be a multiple of 64. Beginning with Windows 8, the key size must be greater than or equal to 512 bits, less than or equal to 3072 bits, and must be a multiple of 64. Processing for key sizes less than or equal to 1024 bits adheres to FIPS-186-2. Processing for key sizes greater than 1024 and less than or equal to 3072 adheres to FIPS 186-3. |
| The key size must be 256 bits. |
| The key size must be 384 bits. |
| The key size must be 521 bits. |
| The key size must be 256 bits. |
| The key size must be 384 bits. |
| The key size must be 521 bits. |
| The key size must be greater than or equal to 512 bits, less than or equal to 16384 bits, and must be a multiple of 64. |
dwFlags
A set of flags that modify the behavior of this function. No flags are currently defined, so this parameter should be zero.
Return value
Returns a status code that indicates the success or failure of the function.
Possible return codes include, but are not limited to, the following.
| Return code | Description |
|---|---|
| The function was successful. |
| The algorithm handle in the hAlgorithm parameter is not valid. |
| One or more parameters are not valid. |
| The specified provider does not support asymmetric key encryption. |
Remarks
Depending on what processor modes a provider supports, BCryptGenerateKeyPair can be called either from user mode or kernel mode. Kernel mode callers can execute either at PASSIVE_LEVELIRQL or DISPATCH_LEVEL IRQL. If the current IRQL level is DISPATCH_LEVEL, the handle provided in the hAlgorithm parameter must have been opened by using the BCRYPT_PROV_DISPATCH flag, and any pointers passed to the BCryptGenerateKeyPair function must refer to nonpaged (or locked) memory.
To call this function in kernel mode, use Cng.lib, which is part of the Driver Development Kit (DDK). Windows Server 2008 and Windows Vista: To call this function in kernel mode, use Ksecdd.lib.
Requirements
| Minimum supported client | Windows Vista [desktop apps UWP apps] |
| Minimum supported server | Windows Server 2008 [desktop apps UWP apps] |
| Target Platform | Windows |
| Header | bcrypt.h |
| Library | Bcrypt.lib |
| DLL | Bcrypt.dll |