Struct KeygenCtx 

pub struct KeygenCtx { /* private fields */ }

Context for generating asymmetric key pairs (EVP_PKEY_CTX in keygen mode).

Implementations

impl KeygenCtx

pub fn new(name: &CStr) -> Result<Self, ErrorStack>

Create a keygen context for the named algorithm.

Common names: c"RSA", c"EC", c"ED25519", c"X25519".

Errors

pub fn set_params(&mut self, params: &Params<'_>) -> Result<(), ErrorStack>

Configure parameters before calling generate.

Errors

pub fn get_params(&self, params: &mut Params<'_>) -> Result<(), ErrorStack>

Retrieve parameter values from this keygen context.

Build a Params with placeholder values for the keys you want, call this method, then read back with params.get_*.

Useful for reading algorithm-negotiated parameters after keygen initialisation (e.g. security strength, EC group name, RSA modulus size).

Errors

Returns Err if EVP_PKEY_CTX_get_params fails.

pub fn security_bits(&self) -> Result<u32, ErrorStack>

Return the security strength of the key operation in bits.

Available after keygen initialisation; reads OSSL_PKEY_PARAM_SECURITY_BITS ("security-bits").

Errors

Returns Err if the context does not support this parameter or is not sufficiently initialised.

pub fn generate(&mut self) -> Result<Pkey<Private>, ErrorStack>

Generate a key pair.

Errors

Trait Implementations

impl Drop for KeygenCtx

fn drop(&mut self)

Executes the destructor for this type.