hpnicfDot11SrvSecurityPskKeyMode 1.3.6.1.4.1.11.2.14.11.15.2.75.4.2.5.1.4

This is the password input mode. When input as pskKeyModePassPhrase, hpnicfDot11SrvSecurityPskKeyString must be 8 to 63 characters; when input as pskKeyModeRawKey, hpnicfDot11SrvSecurityPskKeyString must be 64 characters and each character must be '0'-'9', 'a'-'f' and 'A'-'F'.