| "compression_alg" | string | Compression algorithm. Both "compression_alg"and"compression_level"must be set in order to enable data compression. | 
        
         | "compression_level" | integer | Compression level, 0-9. 0 disables compression. | 
        
         | "armor" | boolean | Enable ASCII-armored output. Disabled by default. | 
        
         | "add_signature" | boolean | Encrypted message will be also signed. | 
        
         | "hash" | string | Set hash algorithm used during signature calculation. "add_signature" option should be set to true | 
        
         | "creation_time" | integer | Set signature creation time in seconds since Jan, 1 1970 UTC. By default current time is used. | 
        
         | "expiration_time" | integer | Set signature expiration time in seconds since the creation time. 0 value is used to mark
          signature as non-expiring (default value). | 
        
         | "password" | string | Add password which is used to encrypt data. | 
        
         | "cipher" | string | Set symmetric encryption algorithm. Possible values are "IDEA", "TRIPLEDES",
	  "CAST5", "BLOWFISH", "AES128", "AES192", "AES256", "TWOFISH", "CAMELLIA128",
          "CAMELLIA192", "CAMELLIA256", "SM4". | 
        
         | "aead" | string | Set AEAD mode algorithm. Possible values are "None" to disable AEAD, "EAX", "OCB". | 
        
         | "aead_bits" | integer | Set chunk length for AEAD mode via number of chunk size bits. Must be between 0 to 56. | 
        
         | "flags" | integer | Set additional encryption flags. Supported flags: RNP_ENCRYPT_NOWRAP - do not wrap the data in a literal data packet. This
          would allow to encrypt already signed data. | 
        
         | "file_name" | string | Set the internally stored file name for the data being encrypted. Special value _CONSOLE may be used to mark message
          as 'for your eyes only', i.e. it should not be stored anywhere but only displayed
          to the receiver. Default is the empty string. | 
        
         | "file_mtime" | integer | Set input file modification date in seconds since Jan, 1 1970 UTC. |