z/OS DFSMSdfp Utilities
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REKEY Statement

z/OS DFSMSdfp Utilities
SC23-6864-00

The syntax of the REKEY statement is:

Label Statement Parameters
ddname REKEY SER=volser
    [,DISP={REWIND|UNLOAD}]
    [,NUMBTAPE={n|1}]
    [,KEYLABL1=keylabel1]
    [,KEYENCD1={L|H}
    [,KEYLABL2=keylabel2]
    [,KEYENCD2={L|H}
where:
KEYLABL1=keylabel1_name
specifies the first key label for the key encryption key used by the Encryption Key Manager. To specify the key label value, you can use up to 64 characters with blanks padding the field on the right. The characters can be alphanumeric, national, or special characters with some additional characters also allowed. If the label contains blanks or special characters, you must enclose it in single quotation marks. IEHINITT does not validate the character set that you specify for the key label keyword.
KEYLABL2=keylabel2_name
specifies the second key label for the key encryption key used by the Encryption Key Manager.
KEYENCD1={L|H}
specifies the encoding mechanism of the first key label.
  • L = encoded as the specified label
  • H = encoded as a hash of the public key
KEYENCD2={L|H}
specifies the encoding mechanism of the second key label.

Attention: You must specify at least one key label and the corresponding key encoding mechanism. You can specify the same value for both key labels. If you specify only one key label, the Encryption Key Manager uses the same value for the second key label. You can use the same set of key labels for a list of volumes, or you can specify different key labels and corresponding encoding mechanisms for each volume.

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