The return code specifies the general result of the callable service. Appendix A. ICSF and TSS Return and Reason Codes lists the return codes.

The reason code specifies the result of the callable service that is returned to the application program. Each return code has different reason codes assigned to it that indicates specific processing problems. Appendix A. ICSF and TSS Return and Reason Codes lists the reason codes.

The length of the data that is passed to the installation exit. The length can be from X'00000000' to X'7FFFFFFF' (2 gigabytes). The data is identified in the exit_data parameter.

The data that is passed to the installation exit.

The number of keywords you are supplying in the rule_array parameter. The valid values are 0 and 1.

Keywords that provides control information to the callable service. The processing method is the encryption mode used to encrypt the message.

The internal token, external token, or key label of an internal token of a double length DES key. The key is recovered in the clear and placed in the text to be encrypted. The control vector of the DES key must not prohibit export.

If the input_key_identifier is an external token, then this parameter is the internal token or the key label of the internal token of IMPORTER or EXPORTER. If it is not, it is a null token. If a key label is specified, the key label must be unique.

The internal token or key label of a secure message key for encrypting keys. This key is used to encrypt the updated clear_text containing the recovered DES key.

The length of the clear_text parameter that follows. Length must be a multiple of eight. Maximum length is 4K.

Clear text that contains the recovered DES key at the offset specified and is then encrypted. Any padding or formatting of the message must be done by the caller on input.

The 8-byte supplied string for the TDES-CBC mode of encryption. The initialization_vector is XORed with the first 8 bytes of clear_text prior to encryption. This field is ignored for TDES-ECB mode.

The offset within the clear_text parameter at key_offset where the recovered clear input_key_identifier value is to be placed. The first byte of the clear_text field is offset 0.

The length of the field within clear_text parameter at key_offset where the recovered clear input_key_identifier value is to be placed. Length must be a multiple of eight and is equal to the key length of the recovered key. The key must fit entirely within the clear_text.

The field where the enciphered text is returned. The length of this field must be at least as long as the clear_text field.

This field contains the last 8 bytes of enciphered text and is used as the initialization_vector for the next encryption call if data needs to be chained for TDES-CBC mode. No data is returned for TDES-ECB.