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-rw-r--r--openpgp/src/crypto/backend/nettle/asymmetric.rs39
1 files changed, 5 insertions, 34 deletions
diff --git a/openpgp/src/crypto/backend/nettle/asymmetric.rs b/openpgp/src/crypto/backend/nettle/asymmetric.rs
index 0d908c55..54fa31d2 100644
--- a/openpgp/src/crypto/backend/nettle/asymmetric.rs
+++ b/openpgp/src/crypto/backend/nettle/asymmetric.rs
@@ -319,45 +319,16 @@ impl<P: key::KeyParts, R: key::KeyRole> Key<P, R> {
use std::time::SystemTime;
use crate::crypto::mem::Protected;
use crate::packet::key::{Key4, SecretParts};
-use crate::types::{PublicKeyAlgorithm, SymmetricAlgorithm};
+use crate::types::PublicKeyAlgorithm;
impl<R> Key4<SecretParts, R>
where R: key::KeyRole,
{
-
- /// Creates a new OpenPGP secret key packet for an existing X25519 key.
- ///
- /// The ECDH key will use hash algorithm `hash` and symmetric
- /// algorithm `sym`. If one or both are `None` secure defaults
- /// will be used. The key will have it's creation date set to
- /// `ctime` or the current time if `None` is given.
- pub fn import_secret_cv25519<H, S, T>(private_key: &[u8],
- hash: H, sym: S, ctime: T)
- -> Result<Self> where H: Into<Option<HashAlgorithm>>,
- S: Into<Option<SymmetricAlgorithm>>,
- T: Into<Option<SystemTime>>
+ pub(crate) fn derive_cv25519_public_key(private_key: &Protected) -> Result<[u8; 32]>
{
- let mut public_key = [0; curve25519::CURVE25519_SIZE];
- curve25519::mul_g(&mut public_key, private_key).unwrap();
-
- let mut private_key = Vec::from(private_key);
- private_key.reverse();
-
- use crate::crypto::ecdh;
- Self::with_secret(
- ctime.into().unwrap_or_else(crate::now),
- PublicKeyAlgorithm::ECDH,
- mpi::PublicKey::ECDH {
- curve: Curve::Cv25519,
- hash: hash.into().unwrap_or_else(
- || ecdh::default_ecdh_kdf_hash(&Curve::Cv25519)),
- sym: sym.into().unwrap_or_else(
- || ecdh::default_ecdh_kek_cipher(&Curve::Cv25519)),
- q: MPI::new_compressed_point(&public_key),
- },
- mpi::SecretKeyMaterial::ECDH {
- scalar: private_key.into(),
- }.into())
+ let mut public_key = [0; ed25519::ED25519_KEY_SIZE];
+ curve25519::mul_g(&mut public_key, private_key)?;
+ Ok(public_key)
}
/// Creates a new OpenPGP secret key packet for an existing Ed25519 key.