xmlSecEncCtx: : the pointer to user data (xmlsec and xmlsec-crypto libraries never touches this). : the XML Encryption processing flags. : the XML Encryption processing flags. : the mode. : the reading key context. : the writing key context (not used for signature verification). : the transforms processing context. : the default encryption method (used if <enc:EncryptionMethod/> node is not present). : the signature key; application may set encKey before calling encryption/decryption functions. : the operation: encrypt or decrypt. XML Encrypiton context.