diff --git a/include/psp2/npdrm.h b/include/psp2/npdrm.h
index 2d26688d6..a33ba4b1d 100644
--- a/include/psp2/npdrm.h
+++ b/include/psp2/npdrm.h
@@ -63,20 +63,23 @@ int _sceNpDrmCheckActData(int *act_type, int *version_flag, SceUInt64 *account_i
  *
  * @return 0 on success, < 0 on error.
 */
-int _sceNpDrmGetRifNameForInstall(char *rif_name, const void *rif_data, int unk);
+int _sceNpDrmGetRifNameForInstall(char *rif_name, const SceNpDrmLicense *rif_data, int unk);
 
 /**
  * Get PSM rif key
  *
  * @param[in] license_buf - RIF buffer (1024 bytes)
  *
- * @param[out] keydata - Decrypted key data
+ * @param[out] keydata - Decrypted keyset
  *
- * @param[in] flags - Unknown
+ * @param[out] flags - License flags
+ * 
+ * @param[out] exp_time - Expire times output
  * 
  * @return 0 on success, < 0 on error
 */
-int scePsmDrmGetRifKey(const ScePsmDrmLicense *license_buf, char *keydata, int flags);
+int scePsmDrmGetRifKey(const ScePsmDrmLicense *license_buf, ScePsmDrmKeySet *keydata, int* flags, ScePsmDrmExpireTime* exp_time);
+
  
 #ifdef __cplusplus
 }
diff --git a/include/psp2common/npdrm.h b/include/psp2common/npdrm.h
index 6abdc15ba..939e7e230 100644
--- a/include/psp2common/npdrm.h
+++ b/include/psp2common/npdrm.h
@@ -7,12 +7,27 @@
 #define _PSP2COMMON_NPDRM_H_
 
 #include <vitasdk/build_utils.h>
+#include <psp2common/kernel/rtc.h>
 #include <psp2common/types.h>
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+typedef struct ScePsmDrmKeySet {
+  SceUInt8 hmac_key[0x20];
+  SceUInt8 key[0x10];
+  SceUInt8 signature[0x1D0];
+} ScePsmDrmKeySet;
+VITASDK_BUILD_ASSERT_EQ(0x200, ScePsmDrmKeySet);
+
+typedef struct ScePsmDrmExpireTime { // size is 0x10
+	SceRtcTick* start_date;
+	SceRtcTick* end_date;
+	int pad[2];
+} ScePsmDrmExpireTime;
+VITASDK_BUILD_ASSERT_EQ(0x10, ScePsmDrmExpireTime);
+
 typedef struct SceNpDrmActivationData { // size is 0x1038
   SceInt16 act_type; 
   SceInt16 version_flag;
@@ -31,16 +46,16 @@ typedef struct SceNpDrmActivationData { // size is 0x1038
 VITASDK_BUILD_ASSERT_EQ(0x1038, SceNpDrmActivationData);
 
 typedef struct SceNpDrmLicense { // size is 0x200
-  SceInt16 version;       // -1 VITA, 0 PSP, 1 PSP-VITA
+  SceInt16 version;       // -1 VITA (NPDRM_FREE), 0 PSP, 1 PSP-VITA
   SceInt16 version_flags; // 0, 1
   SceInt16 license_type;  // 1
   SceInt16 license_flags; // 0x400:non-check ecdsa
-  SceUInt64 account_id;
+  SceUInt64 account_id;   // 0x0:NPDRM_FREE
   char content_id[0x30];
   char key_table[0x10];
   char key1[0x10];
-  SceInt64 start_time;
-  SceInt64 expiration_time;
+  SceRtcTick start_time;
+  SceRtcTick expiration_time;
   char ecdsa_signature[0x28];
   SceInt64 flags;
   char key2[0x10];
@@ -62,14 +77,12 @@ typedef struct ScePsmDrmLicense {
   SceUInt64 account_id;
   SceUInt32 unk3;
   SceUInt32 unk4;
-  SceUInt64 start_time;
-  SceUInt64 expiration_time;
+  SceRtcTick start_time;
+  SceRtcTick expiration_time;
   SceUInt8 activation_checksum[0x20];
   char content_id[0x30];
   SceUInt8 unk5[0x80];
-  SceUInt8 unk6[0x20];
-  SceUInt8 key[0x10];
-  SceUInt8 signature[0x1D0];
+  ScePsmDrmKeySet keyset;
   SceUInt8 rsa_signature[0x100];
 } ScePsmDrmLicense;
 VITASDK_BUILD_ASSERT_EQ(0x400, ScePsmDrmLicense);
diff --git a/include/psp2kern/npdrm.h b/include/psp2kern/npdrm.h
index 45429c0ed..d4bf3c691 100644
--- a/include/psp2kern/npdrm.h
+++ b/include/psp2kern/npdrm.h
@@ -68,7 +68,7 @@ int ksceNpDrmCheckActData(int *act_type, int *version_flag, SceUInt64 *account_i
  *
  * @return 0 on success, < 0 on error.
 */
-int ksceNpDrmGetRifVitaKey(const void *license, void *klicense, int *flags, int *sku_flags, SceUInt64 *lic_start_time, SceUInt64 *lic_exp_time);
+int ksceNpDrmGetRifVitaKey(const SceNpDrmLicense *license, void *klicense, int *flags, int *sku_flags, SceUInt64 *lic_start_time, SceUInt64 *lic_exp_time);
 
 /**
  * Get license key info for a PSP game
@@ -81,7 +81,7 @@ int ksceNpDrmGetRifVitaKey(const void *license, void *klicense, int *flags, int
  *
  * @return 0 on success, < 0 on error.
 */
-int ksceNpDrmGetRifPspKey(const void *license, void *klicense, int *flags, SceUInt64 *lic_start_time, SceUInt64 *lic_exp_time);
+int ksceNpDrmGetRifPspKey(const SceNpDrmLicense *license, void *klicense, int *flags, SceUInt64 *lic_start_time, SceUInt64 *lic_exp_time);
 
 /**
  * Get license info
@@ -101,7 +101,7 @@ int ksceNpDrmGetRifPspKey(const void *license, void *klicense, int *flags, SceUI
  *
  * @return 0 on success, < 0 on error.
 */
-int ksceNpDrmGetRifInfo(const void *license, SceSize license_size, int check_sign, char *content_id, SceUInt64 *account_id, int *license_version, int *license_flags, int *flags, int *sku_flags, SceInt64 *lic_start_time, SceInt64 *lic_exp_time, SceUInt64 *flags2);
+int ksceNpDrmGetRifInfo(const SceNpDrmLicense *license, SceSize license_size, int check_sign, char *content_id, SceUInt64 *account_id, int *license_version, int *license_flags, int *flags, int *sku_flags, SceInt64 *lic_start_time, SceInt64 *lic_exp_time, SceUInt64 *flags2);
 
 /**
  * Verify a eboot.pbp signature "__sce_ebootpbp"