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age,cmd/age,cmd/age-keygen: add post-quantum hybrid keys

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This commit is contained in:
Filippo Valsorda
2025-12-22 19:41:12 +01:00
committed by Filippo Valsorda
parent 6ece9e45ee
commit c6fcb5300c
20 changed files with 720 additions and 91 deletions
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x25519.go
+6 -4
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@@ -21,8 +21,9 @@ import (
const x25519Label = "age-encryption.org/v1/X25519"
// X25519Recipient is the standard age public key. Messages encrypted to this
// recipient can be decrypted with the corresponding X25519Identity.
// X25519Recipient is the standard age pre-quantum public key. Messages
// encrypted to this recipient can be decrypted with the corresponding
// [X25519Identity]. For post-quantum resistance, use [HybridRecipient].
//
// This recipient is anonymous, in the sense that an attacker can't tell from
// the message alone if it is encrypted to a certain recipient.
@@ -105,8 +106,9 @@ func (r *X25519Recipient) String() string {
return s
}
// X25519Identity is the standard age private key, which can decrypt messages
// encrypted to the corresponding X25519Recipient.
// X25519Identity is the standard pre-quantum age private key, which can decrypt
// messages encrypted to the corresponding [X25519Recipient]. For post-quantum
// resistance, use [HybridIdentity].
type X25519Identity struct {
secretKey, ourPublicKey []byte
}