THotPDF.AddPubKeyAgreementRecipient Method

使用调用方提供或由 HSM 派生的协商材料，构建 CMS KeyAgreeRecipientInfo 信封

声明

procedure AddPubKeyAgreementRecipient(const CertificateDER: array of byte; Permissions: THPDFProtectOptions; Scheme: THPDFPubKeyAgreementScheme; const OriginatorPublicKey, SharedSecret: array of byte);

使用说明

• 支持的方案有 P-256、P-384、P-521、X25519 和 X448
• The certificate algorithm and key size must match Scheme
• The matching X9.63 KDF derives an AES-256 key-encryption key
• 全零的共享密钥会被拒绝，临时的密钥副本会被清除