36 lines
1.1 KiB
Rust
36 lines
1.1 KiB
Rust
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#[cfg(not(target_arch = "bpf"))]
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use crate::{
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encryption::elgamal::{ElGamalCiphertext, ElGamalSecretKey},
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zk_token_elgamal::pod,
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};
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#[cfg(not(target_arch = "bpf"))]
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impl pod::ElGamalCiphertext {
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pub fn decrypt(self, secret_key: &ElGamalSecretKey) -> Option<u64> {
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let deserialized_ciphertext: Option<ElGamalCiphertext> = self.try_into().ok();
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if let Some(ciphertext) = deserialized_ciphertext {
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ciphertext.decrypt_u32(secret_key)
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} else {
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None
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}
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}
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}
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#[cfg(test)]
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mod tests {
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use {super::*, crate::encryption::elgamal::ElGamalKeypair};
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#[test]
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fn test_pod_decryption() {
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let keypair = ElGamalKeypair::new_rand();
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let pod_ciphertext = pod::ElGamalCiphertext([0u8; 64]);
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assert_eq!(pod_ciphertext.decrypt(&keypair.secret).unwrap(), 0);
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let amount = 55_u64;
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let ciphertext = keypair.public.encrypt(amount);
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let pod_ciphertext: pod::ElGamalCiphertext = ciphertext.into();
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assert_eq!(pod_ciphertext.decrypt(&keypair.secret).unwrap(), 55);
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}
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}
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