diff --git a/tools/psptools/psptool/kirk.py b/tools/psptools/psptool/kirk.py
index 68f4890..8bad818 100644
--- a/tools/psptools/psptool/kirk.py
+++ b/tools/psptools/psptool/kirk.py
@@ -218,8 +218,10 @@ def kirk1_encrypt_ecdsa(data, salt=b'', key=None):
         key = Random.get_random_bytes(16)
 
     # pad to 16 byte boundary if required
-    padding = padding = b'\x00' * \
-        (0x10-(len(data) % 16)) if len(data) % 16 else b''
+    padding = b''
+    if len(data) % 16:
+    	for i in range(15, len(data) % 16-1, -1):
+    		padding += bytes([i << 4 | i])
 
     # encrypt the data
     aes = AES.new(key, AES.MODE_CBC, iv=b'\x00'*16)
@@ -246,8 +248,10 @@ def kirk1_encrypt_cmac(data, salt=b'', aes_key=None, cmac_key=None):
         cmac_key = Random.get_random_bytes(16)
 
     # pad to 16 byte boundary if required
-    padding = padding = b'\x00' * \
-        (0x10-(len(data) % 16)) if len(data) % 16 else b''
+    padding = b''
+    if len(data) % 16:
+    	for i in range(15, len(data) % 16-1, -1):
+    		padding += bytes([i << 4 | i])
 
     # encrypt the data
     aes = AES.new(aes_key, AES.MODE_CBC, iv=b'\x00'*16)
diff --git a/tools/psptools/psptool/pack.py b/tools/psptools/psptool/pack.py
index 94e11f0..cc636d1 100644
--- a/tools/psptools/psptool/pack.py
+++ b/tools/psptools/psptool/pack.py
@@ -250,4 +250,4 @@ def pack_prx(executable, is_pbp, fix_relocs=True, psptag=psptag_default, oetag=o
     psp_header.psptag = psptag(exec_type)
     psp_header.oetag = oetag(exec_type)
 
-    return psp_header.pack() + compressed_exec + padding
+    return psp_header.pack() + compressed_exec
diff --git a/tools/psptools/psptool/prx.py b/tools/psptools/psptool/prx.py
index 1c00412..c14d572 100644
--- a/tools/psptools/psptool/prx.py
+++ b/tools/psptools/psptool/prx.py
@@ -195,7 +195,36 @@
     0x4C9414F0: {
         'key': 0x43,
         'seed': '45EF5C5DED81998412948FABE8056D7D',
-        'decrypt': type2.decrypt
+        'decrypt': type2.decrypt,
+        'encrypt': type2.encrypt
+    },
+
+    0x4C9416F0: {
+        'key': 0x43,
+        'seed': 'EB1B530B624932581F830AF4993D75D0',
+        'decrypt': type2.decrypt,
+        'encrypt': type2.encrypt
+    },
+
+    0x4C9417F0: {
+        'key': 0x43,
+        'seed': 'BAE2A31207FF041B64A51185F72F995B',
+        'decrypt': type2.decrypt,
+        'encrypt': type2.encrypt
+    },
+
+    0x4C941FF0: {
+        'key': 0x43,
+        'seed': '2C8EAF1DFF79731AAD96AB09EA35598B',
+        'decrypt': type2.decrypt,
+        'encrypt': type2.encrypt
+    },
+    
+    0x38020AF0: {
+        'key': 0x5A,
+        'seed': 'AB8225D7436F6CC195C5F7F063733FE7',
+        'decrypt': type2.decrypt,
+        'encrypt': type2.encrypt
     }
 }
 
diff --git a/tools/psptools/psptool/prxtypes/type2.py b/tools/psptools/psptool/prxtypes/type2.py
index f187c20..9b0521b 100644
--- a/tools/psptools/psptool/prxtypes/type2.py
+++ b/tools/psptools/psptool/prxtypes/type2.py
@@ -128,23 +128,24 @@ def encrypt(prx, meta, id=None):
     id = kirk.kirk7(id, meta['key'])
 
     # create a prx header
-    prx_header = prx_header_2()
-    prx_header.set_elf_info(prx[:0x80])
-    prx_header.set_kirk_block(header)
-    prx_header.set_kirk_metadata(encrypted[0x70:0x80])
-    prx_header.set_btcnf_id(id)
-    prx_header.set_tag(prx[0xD0:0xD4])
+    p = prx_header_2()
+    p.set_elf_info(prx[:0x80])
+    p.set_kirk_block(header)
+    p.set_kirk_metadata(encrypted[0x70:0x80])
+    p.set_btcnf_id(id)
+    p.set_tag(prx[0xD0:0xD4])
 
     # calculate SHA1 of header
     h = SHA1.new()
-    h.update(prx_header.tag())
+    h.update(p.tag())
     h.update(xorbuf[:0x10])
     h.update(b'\x00'*0x58)
-    h.update(prx_header.btcnf_id())
-    h.update(prx_header.kirk_metadata())
-    h.update(prx_header.elf_info())
-    prx_header.set_sha1_hash(h.digest())
+    h.update(p.btcnf_id())
+    h.update(p.kirk_block())
+    h.update(p.kirk_metadata())
+    h.update(p.elf_info())
+    p.set_sha1_hash(h.digest())
 
     # encrypt the header and return the complete PRX
-    prx_header.encrypt_header(meta['key'])
-    return prx_header.prx() + encrypted[0x90+0x80:]
+    p.encrypt_header(meta['key'])
+    return p.prx() + encrypted[0x90+0x80:]