pub struct Encrypter<'a> { /* private fields */ }
Expand description
A type which encrypts data.
Implementations§
source§impl<'a> Encrypter<'a>
impl<'a> Encrypter<'a>
sourcepub fn new<T>(pkey: &'a PKeyRef<T>) -> Result<Encrypter<'a>, ErrorStack>where
T: HasPublic,
pub fn new<T>(pkey: &'a PKeyRef<T>) -> Result<Encrypter<'a>, ErrorStack>where
T: HasPublic,
Creates a new Encrypter
.
OpenSSL documentation at EVP_PKEY_encrypt_init
.
sourcepub fn rsa_padding(&self) -> Result<Padding, ErrorStack>
pub fn rsa_padding(&self) -> Result<Padding, ErrorStack>
Returns the RSA padding mode in use.
This is only useful for RSA keys.
This corresponds to EVP_PKEY_CTX_get_rsa_padding
.
sourcepub fn set_rsa_padding(&mut self, padding: Padding) -> Result<(), ErrorStack>
pub fn set_rsa_padding(&mut self, padding: Padding) -> Result<(), ErrorStack>
Sets the RSA padding mode.
This is only useful for RSA keys.
This corresponds to EVP_PKEY_CTX_set_rsa_padding
.
sourcepub fn set_rsa_mgf1_md(&mut self, md: MessageDigest) -> Result<(), ErrorStack>
pub fn set_rsa_mgf1_md(&mut self, md: MessageDigest) -> Result<(), ErrorStack>
Sets the RSA MGF1 algorithm.
This is only useful for RSA keys.
This corresponds to EVP_PKEY_CTX_set_rsa_mgf1_md
.
sourcepub fn set_rsa_oaep_md(&mut self, md: MessageDigest) -> Result<(), ErrorStack>
pub fn set_rsa_oaep_md(&mut self, md: MessageDigest) -> Result<(), ErrorStack>
Sets the RSA OAEP algorithm.
This is only useful for RSA keys.
This corresponds to EVP_PKEY_CTX_set_rsa_oaep_md
.
sourcepub fn set_rsa_oaep_label(&mut self, label: &[u8]) -> Result<(), ErrorStack>
pub fn set_rsa_oaep_label(&mut self, label: &[u8]) -> Result<(), ErrorStack>
Sets the RSA OAEP label.
This is only useful for RSA keys.
This corresponds to EVP_PKEY_CTX_set0_rsa_oaep_label
.
sourcepub fn encrypt(&self, from: &[u8], to: &mut [u8]) -> Result<usize, ErrorStack>
pub fn encrypt(&self, from: &[u8], to: &mut [u8]) -> Result<usize, ErrorStack>
Performs public key encryption.
In order to know the size needed for the output buffer, use encrypt_len
.
Note that the length of the output buffer can be greater of the length of the encoded data.
let mut encrypter = Encrypter::new(&pkey).unwrap();
encrypter.set_rsa_padding(Padding::PKCS1).unwrap();
// Get the length of the output buffer
let buffer_len = encrypter.encrypt_len(&input).unwrap();
let mut encoded = vec![0u8; buffer_len];
// Encode the data and get its length
let encoded_len = encrypter.encrypt(&input, &mut encoded).unwrap();
// Use only the part of the buffer with the encoded data
let encoded = &encoded[..encoded_len];
This corresponds to EVP_PKEY_encrypt
.
sourcepub fn encrypt_len(&self, from: &[u8]) -> Result<usize, ErrorStack>
pub fn encrypt_len(&self, from: &[u8]) -> Result<usize, ErrorStack>
Gets the size of the buffer needed to encrypt the input data.
This corresponds to EVP_PKEY_encrypt
called with a null pointer as output argument.