gss_krb5_aes_decrypt
u32 gss_krb5_aes_decrypt(struct krb5_ctx *kctx, u32 offset, u32 len,
.decrypt = gss_krb5_aes_decrypt,
.decrypt = gss_krb5_aes_decrypt,
.decrypt = gss_krb5_aes_decrypt,
.decrypt = gss_krb5_aes_decrypt,