diff --git a/src/KeyBag.cpp b/src/KeyBag.cpp
index 49aff54..6f2e5d5 100644
--- a/src/KeyBag.cpp
+++ b/src/KeyBag.cpp
@@ -3,6 +3,7 @@
 #include "util.h"
 #include <tc/cli/FormatUtil.h>
 
+#include <nn/hac/define/types.h>
 #include <nn/hac/define/gc.h>
 #include <nn/hac/AesKeygen.h>
 
@@ -25,6 +26,9 @@ nstool::KeyBagInitializer::KeyBagInitializer(bool isDev, const tc::Optional<tc::
 	{
 		importTicket(tik_path.get());
 	}
+
+	// this will populate known keys if they aren't supplied by the user provided keyfiles.
+	importKnownKeys(isDev);
 }
 
 void nstool::KeyBagInitializer::importBaseKeyFile(const tc::io::Path& keyfile_path, bool isDev)
@@ -344,7 +348,7 @@ void nstool::KeyBagInitializer::importBaseKeyFile(const tc::io::Path& keyfile_pa
 				//fmt::print("{:s}_{:s}_{:02x}\n", kXciHeaderBase[name_idx], kKeyStr, kek_index);
 				_SAVE_AES128KEY(fmt::format("{:s}_{:s}_{:02x}", kXciHeaderBase[name_idx], kKeyStr, kek_index), xci_header_key[kek_index]);
 			}
-			// xci header key (old lable)
+			// xci header key (old label, prod/dev keys are actually a fake distinction, the are different key indexes available to both?, so select correct index when importing)
 			//fmt::print("{:s}_{:s}\n", kXciHeaderBase[name_idx], kKeyStr);
 			_SAVE_AES128KEY(fmt::format("{:s}_{:s}", kXciHeaderBase[name_idx], kKeyStr), xci_header_key[isDev ? nn::hac::gc::KEK_DEV : nn::hac::gc::KEK_PROD]);
 
@@ -566,4 +570,330 @@ void nstool::KeyBagInitializer::importTicket(const tc::io::Path& tik_path)
 		fmt::print("[WARNING] Ticket \"{:s}\" is corrupted ({:s}).\n", tik_path_str, e.error());
 		return;
 	}
+}
+
+void nstool::KeyBagInitializer::importKnownKeys(bool isDev)
+{
+	static const nn::hac::detail::rsa2048_block_t kXciHeaderSignModulus = {
+		0x98, 0xC7, 0x26, 0xB6, 0x0D, 0x0A, 0x50, 0xA7, 0x39, 0x21, 0x0A, 0xE3, 0x2F, 0xE4, 0x3E, 0x2E,
+		0x5B, 0xA2, 0x86, 0x75, 0xAA, 0x5C, 0xEE, 0x34, 0xF1, 0xA3, 0x3A, 0x7E, 0xBD, 0x90, 0x4E, 0xF7,
+		0x8D, 0xFA, 0x17, 0xAA, 0x6B, 0xC6, 0x36, 0x6D, 0x4C, 0x9A, 0x6D, 0x57, 0x2F, 0x80, 0xA2, 0xBC,
+		0x38, 0x4D, 0xDA, 0x99, 0xA1, 0xD8, 0xC3, 0xE2, 0x99, 0x79, 0x36, 0x71, 0x90, 0x20, 0x25, 0x9D,
+		0x4D, 0x11, 0xB8, 0x2E, 0x63, 0x6B, 0x5A, 0xFA, 0x1E, 0x9C, 0x04, 0xD1, 0xC5, 0xF0, 0x9C, 0xB1,
+		0x0F, 0xB8, 0xC1, 0x7B, 0xBF, 0xE8, 0xB0, 0xD2, 0x2B, 0x47, 0x01, 0x22, 0x6B, 0x23, 0xC9, 0xD0,
+		0xBC, 0xEB, 0x75, 0x6E, 0x41, 0x7D, 0x4C, 0x26, 0xA4, 0x73, 0x21, 0xB4, 0xF0, 0x14, 0xE5, 0xD9,
+		0x8D, 0xB3, 0x64, 0xEE, 0xA8, 0xFA, 0x84, 0x1B, 0xB8, 0xB8, 0x7C, 0x88, 0x6B, 0xEF, 0xCC, 0x97,
+		0x04, 0x04, 0x9A, 0x67, 0x2F, 0xDF, 0xEC, 0x0D, 0xB2, 0x5F, 0xB5, 0xB2, 0xBD, 0xB5, 0x4B, 0xDE,
+		0x0E, 0x88, 0xA3, 0xBA, 0xD1, 0xB4, 0xE0, 0x91, 0x81, 0xA7, 0x84, 0xEB, 0x77, 0x85, 0x8B, 0xEF,
+		0xA5, 0xE3, 0x27, 0xB2, 0xF2, 0x82, 0x2B, 0x29, 0xF1, 0x75, 0x2D, 0xCE, 0xCC, 0xAE, 0x9B, 0x8D,
+		0xED, 0x5C, 0xF1, 0x8E, 0xDB, 0x9A, 0xD7, 0xAF, 0x42, 0x14, 0x52, 0xCD, 0xE3, 0xC5, 0xDD, 0xCE,
+		0x08, 0x12, 0x17, 0xD0, 0x7F, 0x1A, 0xAA, 0x1F, 0x7D, 0xE0, 0x93, 0x54, 0xC8, 0xBC, 0x73, 0x8A,
+		0xCB, 0xAD, 0x6E, 0x93, 0xE2, 0x19, 0x72, 0x6B, 0xD3, 0x45, 0xF8, 0x73, 0x3D, 0x2B, 0x6A, 0x55,
+		0xD2, 0x3A, 0x8B, 0xB0, 0x8A, 0x42, 0xE3, 0x3D, 0xF1, 0x92, 0x23, 0x42, 0x2E, 0xBA, 0xCC, 0x9C,
+		0x9A, 0xC1, 0xDD, 0x62, 0x86, 0x9C, 0x2E, 0xE1, 0x2D, 0x6F, 0x62, 0x67, 0x51, 0x08, 0x0E, 0xCF
+	};
+
+	static const nn::hac::detail::rsa2048_block_t kXciCertSignModulus = {
+		0xCD, 0xF3, 0x2C, 0xB0, 0xF5, 0x14, 0x78, 0x34, 0xE5, 0x02, 0xD0, 0x29, 0x6A, 0xA5, 0xFD, 0x97,
+		0x6A, 0xE0, 0xB0, 0xBB, 0xB0, 0x3B, 0x1A, 0x80, 0xB7, 0xD7, 0x58, 0x92, 0x79, 0x84, 0xC0, 0x36,
+		0xB1, 0x55, 0x23, 0xD8, 0xA5, 0x60, 0x91, 0x26, 0x48, 0x1A, 0x80, 0x4A, 0xEA, 0x00, 0x98, 0x2A,
+		0xEC, 0x52, 0x17, 0x72, 0x92, 0x4D, 0xF5, 0x42, 0xA7, 0x8A, 0x6F, 0x7F, 0xD2, 0x48, 0x51, 0x8E,
+		0xDF, 0xCB, 0xBF, 0x77, 0xF6, 0x18, 0xBD, 0xE5, 0x00, 0xD9, 0x70, 0x8C, 0xEF, 0x57, 0xB2, 0x96,
+		0xD0, 0x36, 0x83, 0x88, 0x9C, 0xC5, 0xFB, 0xA0, 0x33, 0x81, 0xA2, 0x12, 0x23, 0xC6, 0xC7, 0x86,
+		0x0A, 0x98, 0x57, 0x4D, 0x2E, 0xB5, 0xAE, 0x64, 0xE4, 0x6F, 0xC2, 0xC5, 0xAC, 0x6A, 0x1D, 0xDB,
+		0xA5, 0xAF, 0x12, 0x22, 0xAB, 0x1F, 0x51, 0xC8, 0x0E, 0x0D, 0xC9, 0xF5, 0x03, 0xE8, 0xD2, 0xFC,
+		0x84, 0x62, 0x26, 0x55, 0xA4, 0xC3, 0xE2, 0xA8, 0x98, 0x05, 0x67, 0x23, 0xFD, 0xA5, 0x46, 0x40,
+		0x78, 0x51, 0x09, 0x3D, 0x91, 0x74, 0xD6, 0xD0, 0x54, 0x23, 0x0D, 0xA0, 0xFB, 0x07, 0xD0, 0xAA,
+		0x9D, 0x50, 0x4E, 0x2B, 0x26, 0x9A, 0x14, 0xE5, 0x6C, 0x73, 0x66, 0x24, 0x18, 0xA1, 0x93, 0x9C,
+		0x2A, 0x40, 0x40, 0x05, 0x6B, 0xF1, 0x45, 0xDF, 0x22, 0x8B, 0x40, 0x61, 0xA4, 0x11, 0x06, 0x03,
+		0xA5, 0x53, 0x84, 0xC0, 0x12, 0xE1, 0x88, 0x9D, 0x55, 0x55, 0x07, 0x40, 0x88, 0x01, 0x8C, 0xAB,
+		0xA2, 0xFD, 0xFD, 0x19, 0x48, 0x25, 0xAB, 0x59, 0x59, 0x28, 0x63, 0x68, 0x69, 0x1B, 0x99, 0x73,
+		0x8D, 0xAB, 0x5A, 0xFA, 0x71, 0x60, 0x1B, 0x12, 0xE7, 0x99, 0x70, 0xF1, 0x99, 0x2A, 0x50, 0x18,
+		0x8B, 0x6B, 0x61, 0x90, 0xE2, 0x7E, 0x8B, 0x90, 0xD4, 0xD5, 0xC0, 0xCB, 0x7C, 0x08, 0x06, 0xD9
+	};
+	
+	/* Keydata for very early beta NCA0 archives' RSA-OAEP. */
+	/*
+	static const nn::hac::detail::rsa2048_block_t beta_nca0_modulus = {
+		0xAD, 0x58, 0xEE, 0x97, 0xF9, 0x47, 0x90, 0x7D, 0xF9, 0x29, 0x5F, 0x1F, 0x39, 0x68, 0xEE, 0x49,
+		0x4C, 0x1E, 0x8D, 0x84, 0x91, 0x31, 0x5D, 0xE5, 0x96, 0x27, 0xB2, 0xB3, 0x59, 0x7B, 0xDE, 0xFD,
+		0xB7, 0xEB, 0x40, 0xA1, 0xE7, 0xEB, 0xDC, 0x60, 0xD0, 0x3D, 0xC5, 0x50, 0x92, 0xAD, 0x3D, 0xC4,
+		0x8C, 0x17, 0xD2, 0x37, 0x66, 0xE3, 0xF7, 0x14, 0x34, 0x38, 0x6B, 0xA7, 0x2B, 0x21, 0x10, 0x9B,
+		0x73, 0x49, 0x15, 0xD9, 0x2A, 0x90, 0x86, 0x76, 0x81, 0x6A, 0x10, 0xBD, 0x74, 0xC4, 0x20, 0x55,
+		0x25, 0xA8, 0x02, 0xC5, 0xA0, 0x34, 0x36, 0x7B, 0x66, 0x47, 0x2C, 0x7E, 0x47, 0x82, 0xA5, 0xD4,
+		0xA3, 0x42, 0x45, 0xE8, 0xFD, 0x65, 0x72, 0x48, 0xA1, 0xB0, 0x44, 0x10, 0xEF, 0xAC, 0x1D, 0x0F,
+		0xB5, 0x12, 0x19, 0xA8, 0x41, 0x0B, 0x76, 0x3B, 0xBC, 0xF1, 0x4A, 0x10, 0x46, 0x22, 0xB8, 0xF1,
+		0xBC, 0x21, 0x81, 0x69, 0x9B, 0x63, 0x6F, 0xD7, 0xB9, 0x60, 0x2A, 0x9A, 0xE5, 0x2C, 0x47, 0x72,
+		0x59, 0x65, 0xA2, 0x21, 0x60, 0xC4, 0xFC, 0xB0, 0xD7, 0x6F, 0x42, 0xC9, 0x0C, 0xF5, 0x76, 0x7D,
+		0xF2, 0x5C, 0xE0, 0x80, 0x0F, 0xEE, 0x45, 0x7E, 0x4E, 0x3A, 0x8D, 0x9C, 0x5B, 0x5B, 0xD9, 0xD1,
+		0x43, 0x94, 0x2C, 0xC7, 0x2E, 0xB9, 0x4A, 0xE5, 0x3E, 0x15, 0xDD, 0x43, 0x00, 0xF7, 0x78, 0xE7,
+		0x7C, 0x39, 0xB0, 0x4D, 0xC5, 0xD1, 0x1C, 0xF2, 0xB4, 0x7A, 0x2A, 0xEA, 0x0A, 0x8E, 0xB9, 0x13,
+		0xB4, 0x4F, 0xD7, 0x5B, 0x4D, 0x7B, 0x43, 0xB0, 0x3A, 0x9A, 0x60, 0x22, 0x47, 0x91, 0x78, 0xC7,
+		0x10, 0x64, 0xE0, 0x2C, 0x69, 0xD1, 0x66, 0x3C, 0x42, 0x2E, 0xEF, 0x19, 0x21, 0x89, 0x8E, 0xE1,
+		0xB0, 0xB4, 0xD0, 0x17, 0xA1, 0x0F, 0x73, 0x98, 0x5A, 0xF6, 0xEE, 0xC0, 0x2F, 0x9E, 0xCE, 0xC5
+	};
+
+	static const nn::hac::detail::sha256_hash_t beta_nca0_label_hash = {
+		0xE3, 0xB0, 0xC4, 0x42, 0x98, 0xFC, 0x1C, 0x14, 0x9A, 0xFB, 0xF4, 0xC8, 0x99, 0x6F, 0xB9, 0x24,
+		0x27, 0xAE, 0x41, 0xE4, 0x64, 0x9B, 0x93, 0x4C, 0xA4, 0x95, 0x99, 0x1B, 0x78, 0x52, 0xB8, 0x55
+	};
+	*/
+
+	struct sRsaKeyForGeneration {
+		byte_t generation;
+		nn::hac::detail::rsa2048_block_t modulus;
+	};
+
+	static const nn::hac::detail::rsa2048_block_t kProdPackage2HeaderModulus = {
+		0x8D, 0x13, 0xA7, 0x77, 0x6A, 0xE5, 0xDC, 0xC0, 0x3B, 0x25, 0xD0, 0x58, 0xE4, 0x20, 0x69, 0x59,
+		0x55, 0x4B, 0xAB, 0x70, 0x40, 0x08, 0x28, 0x07, 0xA8, 0xA7, 0xFD, 0x0F, 0x31, 0x2E, 0x11, 0xFE,
+		0x47, 0xA0, 0xF9, 0x9D, 0xDF, 0x80, 0xDB, 0x86, 0x5A, 0x27, 0x89, 0xCD, 0x97, 0x6C, 0x85, 0xC5,
+		0x6C, 0x39, 0x7F, 0x41, 0xF2, 0xFF, 0x24, 0x20, 0xC3, 0x95, 0xA6, 0xF7, 0x9D, 0x4A, 0x45, 0x74,
+		0x8B, 0x5D, 0x28, 0x8A, 0xC6, 0x99, 0x35, 0x68, 0x85, 0xA5, 0x64, 0x32, 0x80, 0x9F, 0xD3, 0x48,
+		0x39, 0xA2, 0x1D, 0x24, 0x67, 0x69, 0xDF, 0x75, 0xAC, 0x12, 0xB5, 0xBD, 0xC3, 0x29, 0x90, 0xBE,
+		0x37, 0xE4, 0xA0, 0x80, 0x9A, 0xBE, 0x36, 0xBF, 0x1F, 0x2C, 0xAB, 0x2B, 0xAD, 0xF5, 0x97, 0x32,
+		0x9A, 0x42, 0x9D, 0x09, 0x8B, 0x08, 0xF0, 0x63, 0x47, 0xA3, 0xE9, 0x1B, 0x36, 0xD8, 0x2D, 0x8A,
+		0xD7, 0xE1, 0x54, 0x11, 0x95, 0xE4, 0x45, 0x88, 0x69, 0x8A, 0x2B, 0x35, 0xCE, 0xD0, 0xA5, 0x0B,
+		0xD5, 0x5D, 0xAC, 0xDB, 0xAF, 0x11, 0x4D, 0xCA, 0xB8, 0x1E, 0xE7, 0x01, 0x9E, 0xF4, 0x46, 0xA3,
+		0x8A, 0x94, 0x6D, 0x76, 0xBD, 0x8A, 0xC8, 0x3B, 0xD2, 0x31, 0x58, 0x0C, 0x79, 0xA8, 0x26, 0xE9,
+		0xD1, 0x79, 0x9C, 0xCB, 0xD4, 0x2B, 0x6A, 0x4F, 0xC6, 0xCC, 0xCF, 0x90, 0xA7, 0xB9, 0x98, 0x47,
+		0xFD, 0xFA, 0x4C, 0x6C, 0x6F, 0x81, 0x87, 0x3B, 0xCA, 0xB8, 0x50, 0xF6, 0x3E, 0x39, 0x5D, 0x4D,
+		0x97, 0x3F, 0x0F, 0x35, 0x39, 0x53, 0xFB, 0xFA, 0xCD, 0xAB, 0xA8, 0x7A, 0x62, 0x9A, 0x3F, 0xF2,
+		0x09, 0x27, 0x96, 0x3F, 0x07, 0x9A, 0x91, 0xF7, 0x16, 0xBF, 0xC6, 0x3A, 0x82, 0x5A, 0x4B, 0xCF,
+		0x49, 0x50, 0x95, 0x8C, 0x55, 0x80, 0x7E, 0x39, 0xB1, 0x48, 0x05, 0x1E, 0x21, 0xC7, 0x24, 0x4F
+	};
+
+	static const std::vector<sRsaKeyForGeneration> kProdNcaHeaderSign0Modulus = 
+	{
+		{
+			0x00, 
+			{0xBF, 0xBE, 0x40, 0x6C, 0xF4, 0xA7, 0x80, 0xE9, 0xF0, 0x7D, 0x0C, 0x99, 0x61, 0x1D, 0x77, 0x2F,
+			0x96, 0xBC, 0x4B, 0x9E, 0x58, 0x38, 0x1B, 0x03, 0xAB, 0xB1, 0x75, 0x49, 0x9F, 0x2B, 0x4D, 0x58,
+			0x34, 0xB0, 0x05, 0xA3, 0x75, 0x22, 0xBE, 0x1A, 0x3F, 0x03, 0x73, 0xAC, 0x70, 0x68, 0xD1, 0x16,
+			0xB9, 0x04, 0x46, 0x5E, 0xB7, 0x07, 0x91, 0x2F, 0x07, 0x8B, 0x26, 0xDE, 0xF6, 0x00, 0x07, 0xB2,
+			0xB4, 0x51, 0xF8, 0x0D, 0x0A, 0x5E, 0x58, 0xAD, 0xEB, 0xBC, 0x9A, 0xD6, 0x49, 0xB9, 0x64, 0xEF,
+			0xA7, 0x82, 0xB5, 0xCF, 0x6D, 0x70, 0x13, 0xB0, 0x0F, 0x85, 0xF6, 0xA9, 0x08, 0xAA, 0x4D, 0x67,
+			0x66, 0x87, 0xFA, 0x89, 0xFF, 0x75, 0x90, 0x18, 0x1E, 0x6B, 0x3D, 0xE9, 0x8A, 0x68, 0xC9, 0x26,
+			0x04, 0xD9, 0x80, 0xCE, 0x3F, 0x5E, 0x92, 0xCE, 0x01, 0xFF, 0x06, 0x3B, 0xF2, 0xC1, 0xA9, 0x0C,
+			0xCE, 0x02, 0x6F, 0x16, 0xBC, 0x92, 0x42, 0x0A, 0x41, 0x64, 0xCD, 0x52, 0xB6, 0x34, 0x4D, 0xAE,
+			0xC0, 0x2E, 0xDE, 0xA4, 0xDF, 0x27, 0x68, 0x3C, 0xC1, 0xA0, 0x60, 0xAD, 0x43, 0xF3, 0xFC, 0x86,
+			0xC1, 0x3E, 0x6C, 0x46, 0xF7, 0x7C, 0x29, 0x9F, 0xFA, 0xFD, 0xF0, 0xE3, 0xCE, 0x64, 0xE7, 0x35,
+			0xF2, 0xF6, 0x56, 0x56, 0x6F, 0x6D, 0xF1, 0xE2, 0x42, 0xB0, 0x83, 0x40, 0xA5, 0xC3, 0x20, 0x2B,
+			0xCC, 0x9A, 0xAE, 0xCA, 0xED, 0x4D, 0x70, 0x30, 0xA8, 0x70, 0x1C, 0x70, 0xFD, 0x13, 0x63, 0x29,
+			0x02, 0x79, 0xEA, 0xD2, 0xA7, 0xAF, 0x35, 0x28, 0x32, 0x1C, 0x7B, 0xE6, 0x2F, 0x1A, 0xAA, 0x40,
+			0x7E, 0x32, 0x8C, 0x27, 0x42, 0xFE, 0x82, 0x78, 0xEC, 0x0D, 0xEB, 0xE6, 0x83, 0x4B, 0x6D, 0x81,
+			0x04, 0x40, 0x1A, 0x9E, 0x9A, 0x67, 0xF6, 0x72, 0x29, 0xFA, 0x04, 0xF0, 0x9D, 0xE4, 0xF4, 0x03,}
+		},
+		{
+			0x01, 
+			{0xAD, 0xE3, 0xE1, 0xFA, 0x04, 0x35, 0xE5, 0xB6, 0xDD, 0x49, 0xEA, 0x89, 0x29, 0xB1, 0xFF, 0xB6,
+            0x43, 0xDF, 0xCA, 0x96, 0xA0, 0x4A, 0x13, 0xDF, 0x43, 0xD9, 0x94, 0x97, 0x96, 0x43, 0x65, 0x48,
+            0x70, 0x58, 0x33, 0xA2, 0x7D, 0x35, 0x7B, 0x96, 0x74, 0x5E, 0x0B, 0x5C, 0x32, 0x18, 0x14, 0x24,
+            0xC2, 0x58, 0xB3, 0x6C, 0x22, 0x7A, 0xA1, 0xB7, 0xCB, 0x90, 0xA7, 0xA3, 0xF9, 0x7D, 0x45, 0x16,
+            0xA5, 0xC8, 0xED, 0x8F, 0xAD, 0x39, 0x5E, 0x9E, 0x4B, 0x51, 0x68, 0x7D, 0xF8, 0x0C, 0x35, 0xC6,
+            0x3F, 0x91, 0xAE, 0x44, 0xA5, 0x92, 0x30, 0x0D, 0x46, 0xF8, 0x40, 0xFF, 0xD0, 0xFF, 0x06, 0xD2,
+            0x1C, 0x7F, 0x96, 0x18, 0xDC, 0xB7, 0x1D, 0x66, 0x3E, 0xD1, 0x73, 0xBC, 0x15, 0x8A, 0x2F, 0x94,
+            0xF3, 0x00, 0xC1, 0x83, 0xF1, 0xCD, 0xD7, 0x81, 0x88, 0xAB, 0xDF, 0x8C, 0xEF, 0x97, 0xDD, 0x1B,
+            0x17, 0x5F, 0x58, 0xF6, 0x9A, 0xE9, 0xE8, 0xC2, 0x2F, 0x38, 0x15, 0xF5, 0x21, 0x07, 0xF8, 0x37,
+            0x90, 0x5D, 0x2E, 0x02, 0x40, 0x24, 0x15, 0x0D, 0x25, 0xB7, 0x26, 0x5D, 0x09, 0xCC, 0x4C, 0xF4,
+            0xF2, 0x1B, 0x94, 0x70, 0x5A, 0x9E, 0xEE, 0xED, 0x77, 0x77, 0xD4, 0x51, 0x99, 0xF5, 0xDC, 0x76,
+            0x1E, 0xE3, 0x6C, 0x8C, 0xD1, 0x12, 0xD4, 0x57, 0xD1, 0xB6, 0x83, 0xE4, 0xE4, 0xFE, 0xDA, 0xE9,
+            0xB4, 0x3B, 0x33, 0xE5, 0x37, 0x8A, 0xDF, 0xB5, 0x7F, 0x89, 0xF1, 0x9B, 0x9E, 0xB0, 0x15, 0xB2,
+            0x3A, 0xFE, 0xEA, 0x61, 0x84, 0x5B, 0x7D, 0x4B, 0x23, 0x12, 0x0B, 0x83, 0x12, 0xF2, 0x22, 0x6B,
+            0xB9, 0x22, 0x96, 0x4B, 0x26, 0x0B, 0x63, 0x5E, 0x96, 0x57, 0x52, 0xA3, 0x67, 0x64, 0x22, 0xCA,
+            0xD0, 0x56, 0x3E, 0x74, 0xB5, 0x98, 0x1F, 0x0D, 0xF8, 0xB3, 0x34, 0xE6, 0x98, 0x68, 0x5A, 0xAD,}
+		},
+	};
+
+	static const std::vector<sRsaKeyForGeneration> kProdAcidSignModulus = 
+	{
+		{
+			0x00, 
+			{0xDD, 0xC8, 0xDD, 0xF2, 0x4E, 0x6D, 0xF0, 0xCA, 0x9E, 0xC7, 0x5D, 0xC7, 0x7B, 0xAD, 0xFE, 0x7D,
+            0x23, 0x89, 0x69, 0xB6, 0xF2, 0x06, 0xA2, 0x02, 0x88, 0xE1, 0x55, 0x91, 0xAB, 0xCB, 0x4D, 0x50,
+            0x2E, 0xFC, 0x9D, 0x94, 0x76, 0xD6, 0x4C, 0xD8, 0xFF, 0x10, 0xFA, 0x5E, 0x93, 0x0A, 0xB4, 0x57,
+            0xAC, 0x51, 0xC7, 0x16, 0x66, 0xF4, 0x1A, 0x54, 0xC2, 0xC5, 0x04, 0x3D, 0x1B, 0xFE, 0x30, 0x20,
+            0x8A, 0xAC, 0x6F, 0x6F, 0xF5, 0xC7, 0xB6, 0x68, 0xB8, 0xC9, 0x40, 0x6B, 0x42, 0xAD, 0x11, 0x21,
+            0xE7, 0x8B, 0xE9, 0x75, 0x01, 0x86, 0xE4, 0x48, 0x9B, 0x0A, 0x0A, 0xF8, 0x7F, 0xE8, 0x87, 0xF2,
+            0x82, 0x01, 0xE6, 0xA3, 0x0F, 0xE4, 0x66, 0xAE, 0x83, 0x3F, 0x4E, 0x9F, 0x5E, 0x01, 0x30, 0xA4,
+            0x00, 0xB9, 0x9A, 0xAE, 0x5F, 0x03, 0xCC, 0x18, 0x60, 0xE5, 0xEF, 0x3B, 0x5E, 0x15, 0x16, 0xFE,
+            0x1C, 0x82, 0x78, 0xB5, 0x2F, 0x47, 0x7C, 0x06, 0x66, 0x88, 0x5D, 0x35, 0xA2, 0x67, 0x20, 0x10,
+            0xE7, 0x6C, 0x43, 0x68, 0xD3, 0xE4, 0x5A, 0x68, 0x2A, 0x5A, 0xE2, 0x6D, 0x73, 0xB0, 0x31, 0x53,
+            0x1C, 0x20, 0x09, 0x44, 0xF5, 0x1A, 0x9D, 0x22, 0xBE, 0x12, 0xA1, 0x77, 0x11, 0xE2, 0xA1, 0xCD,
+            0x40, 0x9A, 0xA2, 0x8B, 0x60, 0x9B, 0xEF, 0xA0, 0xD3, 0x48, 0x63, 0xA2, 0xF8, 0xA3, 0x2C, 0x08,
+            0x56, 0x52, 0x2E, 0x60, 0x19, 0x67, 0x5A, 0xA7, 0x9F, 0xDC, 0x3F, 0x3F, 0x69, 0x2B, 0x31, 0x6A,
+            0xB7, 0x88, 0x4A, 0x14, 0x84, 0x80, 0x33, 0x3C, 0x9D, 0x44, 0xB7, 0x3F, 0x4C, 0xE1, 0x75, 0xEA,
+            0x37, 0xEA, 0xE8, 0x1E, 0x7C, 0x77, 0xB7, 0xC6, 0x1A, 0xA2, 0xF0, 0x9F, 0x10, 0x61, 0xCD, 0x7B,
+            0x5B, 0x32, 0x4C, 0x37, 0xEF, 0xB1, 0x71, 0x68, 0x53, 0x0A, 0xED, 0x51, 0x7D, 0x35, 0x22, 0xFD,}
+		},
+		{
+			0x01, 
+			{0xE7, 0xAA, 0x25, 0xC8, 0x01, 0xA5, 0x14, 0x6B, 0x01, 0x60, 0x3E, 0xD9, 0x96, 0x5A, 0xBF, 0x90,
+            0xAC, 0xA7, 0xFD, 0x9B, 0x5B, 0xBD, 0x8A, 0x26, 0xB0, 0xCB, 0x20, 0x28, 0x9A, 0x72, 0x12, 0xF5,
+            0x20, 0x65, 0xB3, 0xB9, 0x84, 0x58, 0x1F, 0x27, 0xBC, 0x7C, 0xA2, 0xC9, 0x9E, 0x18, 0x95, 0xCF,
+            0xC2, 0x73, 0x2E, 0x74, 0x8C, 0x66, 0xE5, 0x9E, 0x79, 0x2B, 0xB8, 0x07, 0x0C, 0xB0, 0x4E, 0x8E,
+            0xAB, 0x85, 0x21, 0x42, 0xC4, 0xC5, 0x6D, 0x88, 0x9C, 0xDB, 0x15, 0x95, 0x3F, 0x80, 0xDB, 0x7A,
+            0x9A, 0x7D, 0x41, 0x56, 0x25, 0x17, 0x18, 0x42, 0x4D, 0x8C, 0xAC, 0xA5, 0x7B, 0xDB, 0x42, 0x5D,
+            0x59, 0x35, 0x45, 0x5D, 0x8A, 0x02, 0xB5, 0x70, 0xC0, 0x72, 0x35, 0x46, 0xD0, 0x1D, 0x60, 0x01,
+            0x4A, 0xCC, 0x1C, 0x46, 0xD3, 0xD6, 0x35, 0x52, 0xD6, 0xE1, 0xF8, 0x3B, 0x5D, 0xEA, 0xDD, 0xB8,
+            0xFE, 0x7D, 0x50, 0xCB, 0x35, 0x23, 0x67, 0x8B, 0xB6, 0xE4, 0x74, 0xD2, 0x60, 0xFC, 0xFD, 0x43,
+            0xBF, 0x91, 0x08, 0x81, 0xC5, 0x4F, 0x5D, 0x16, 0x9A, 0xC4, 0x9A, 0xC6, 0xF6, 0xF3, 0xE1, 0xF6,
+            0x5C, 0x07, 0xAA, 0x71, 0x6C, 0x13, 0xA4, 0xB1, 0xB3, 0x66, 0xBF, 0x90, 0x4C, 0x3D, 0xA2, 0xC4,
+            0x0B, 0xB8, 0x3D, 0x7A, 0x8C, 0x19, 0xFA, 0xFF, 0x6B, 0xB9, 0x1F, 0x02, 0xCC, 0xB6, 0xD3, 0x0C,
+            0x7D, 0x19, 0x1F, 0x47, 0xF9, 0xC7, 0x40, 0x01, 0xFA, 0x46, 0xEA, 0x0B, 0xD4, 0x02, 0xE0, 0x3D,
+            0x30, 0x9A, 0x1A, 0x0F, 0xEA, 0xA7, 0x66, 0x55, 0xF7, 0xCB, 0x28, 0xE2, 0xBB, 0x99, 0xE4, 0x83,
+            0xC3, 0x43, 0x03, 0xEE, 0xDC, 0x1F, 0x02, 0x23, 0xDD, 0xD1, 0x2D, 0x39, 0xA4, 0x65, 0x75, 0x03,
+            0xEF, 0x37, 0x9C, 0x06, 0xD6, 0xFA, 0xA1, 0x15, 0xF0, 0xDB, 0x17, 0x47, 0x26, 0x4F, 0x49, 0x03}
+		},
+	};
+
+	static const nn::hac::detail::rsa2048_block_t kDevPackage2HeaderModulus = {
+		0xB3, 0x65, 0x54, 0xFB, 0x0A, 0xB0, 0x1E, 0x85, 0xA7, 0xF6, 0xCF, 0x91, 0x8E, 0xBA, 0x96, 0x99,
+		0x0D, 0x8B, 0x91, 0x69, 0x2A, 0xEE, 0x01, 0x20, 0x4F, 0x34, 0x5C, 0x2C, 0x4F, 0x4E, 0x37, 0xC7,
+		0xF1, 0x0B, 0xD4, 0xCD, 0xA1, 0x7F, 0x93, 0xF1, 0x33, 0x59, 0xCE, 0xB1, 0xE9, 0xDD, 0x26, 0xE6,
+		0xF3, 0xBB, 0x77, 0x87, 0x46, 0x7A, 0xD6, 0x4E, 0x47, 0x4A, 0xD1, 0x41, 0xB7, 0x79, 0x4A, 0x38,
+		0x06, 0x6E, 0xCF, 0x61, 0x8F, 0xCD, 0xC1, 0x40, 0x0B, 0xFA, 0x26, 0xDC, 0xC0, 0x34, 0x51, 0x83,
+		0xD9, 0x3B, 0x11, 0x54, 0x3B, 0x96, 0x27, 0x32, 0x9A, 0x95, 0xBE, 0x1E, 0x68, 0x11, 0x50, 0xA0,
+		0x6B, 0x10, 0xA8, 0x83, 0x8B, 0xF5, 0xFC, 0xBC, 0x90, 0x84, 0x7A, 0x5A, 0x5C, 0x43, 0x52, 0xE6,
+		0xC8, 0x26, 0xE9, 0xFE, 0x06, 0xA0, 0x8B, 0x53, 0x0F, 0xAF, 0x1E, 0xC4, 0x1C, 0x0B, 0xCF, 0x50,
+		0x1A, 0xA4, 0xF3, 0x5C, 0xFB, 0xF0, 0x97, 0xE4, 0xDE, 0x32, 0x0A, 0x9F, 0xE3, 0x5A, 0xAA, 0xB7,
+		0x44, 0x7F, 0x5C, 0x33, 0x60, 0xB9, 0x0F, 0x22, 0x2D, 0x33, 0x2A, 0xE9, 0x69, 0x79, 0x31, 0x42,
+		0x8F, 0xE4, 0x3A, 0x13, 0x8B, 0xE7, 0x26, 0xBD, 0x08, 0x87, 0x6C, 0xA6, 0xF2, 0x73, 0xF6, 0x8E,
+		0xA7, 0xF2, 0xFE, 0xFB, 0x6C, 0x28, 0x66, 0x0D, 0xBD, 0xD7, 0xEB, 0x42, 0xA8, 0x78, 0xE6, 0xB8,
+		0x6B, 0xAE, 0xC7, 0xA9, 0xE2, 0x40, 0x6E, 0x89, 0x20, 0x82, 0x25, 0x8E, 0x3C, 0x6A, 0x60, 0xD7,
+		0xF3, 0x56, 0x8E, 0xEC, 0x8D, 0x51, 0x8A, 0x63, 0x3C, 0x04, 0x78, 0x23, 0x0E, 0x90, 0x0C, 0xB4,
+		0xE7, 0x86, 0x3B, 0x4F, 0x8E, 0x13, 0x09, 0x47, 0x32, 0x0E, 0x04, 0xB8, 0x4D, 0x5B, 0xB0, 0x46,
+		0x71, 0xB0, 0x5C, 0xF4, 0xAD, 0x63, 0x4F, 0xC5, 0xE2, 0xAC, 0x1E, 0xC4, 0x33, 0x96, 0x09, 0x7B
+	};
+
+	static const std::vector<sRsaKeyForGeneration> kDevNcaHeaderSign0Modulus = 
+	{
+		{
+			0x00, 
+			{0xD8, 0xF1, 0x18, 0xEF, 0x32, 0x72, 0x4C, 0xA7, 0x47, 0x4C, 0xB9, 0xEA, 0xB3, 0x04, 0xA8, 0xA4,
+			0xAC, 0x99, 0x08, 0x08, 0x04, 0xBF, 0x68, 0x57, 0xB8, 0x43, 0x94, 0x2B, 0xC7, 0xB9, 0x66, 0x49,
+			0x85, 0xE5, 0x8A, 0x9B, 0xC1, 0x00, 0x9A, 0x6A, 0x8D, 0xD0, 0xEF, 0xCE, 0xFF, 0x86, 0xC8, 0x5C,
+			0x5D, 0xE9, 0x53, 0x7B, 0x19, 0x2A, 0xA8, 0xC0, 0x22, 0xD1, 0xF3, 0x22, 0x0A, 0x50, 0xF2, 0x2B,
+			0x65, 0x05, 0x1B, 0x9E, 0xEC, 0x61, 0xB5, 0x63, 0xA3, 0x6F, 0x3B, 0xBA, 0x63, 0x3A, 0x53, 0xF4,
+			0x49, 0x2F, 0xCF, 0x03, 0xCC, 0xD7, 0x50, 0x82, 0x1B, 0x29, 0x4F, 0x08, 0xDE, 0x1B, 0x6D, 0x47,
+			0x4F, 0xA8, 0xB6, 0x6A, 0x26, 0xA0, 0x83, 0x3F, 0x1A, 0xAF, 0x83, 0x8F, 0x0E, 0x17, 0x3F, 0xFE,
+			0x44, 0x1C, 0x56, 0x94, 0x2E, 0x49, 0x83, 0x83, 0x03, 0xE9, 0xB6, 0xAD, 0xD5, 0xDE, 0xE3, 0x2D,
+			0xA1, 0xD9, 0x66, 0x20, 0x5D, 0x1F, 0x5E, 0x96, 0x5D, 0x5B, 0x55, 0x0D, 0xD4, 0xB4, 0x77, 0x6E,
+			0xAE, 0x1B, 0x69, 0xF3, 0xA6, 0x61, 0x0E, 0x51, 0x62, 0x39, 0x28, 0x63, 0x75, 0x76, 0xBF, 0xB0,
+			0xD2, 0x22, 0xEF, 0x98, 0x25, 0x02, 0x05, 0xC0, 0xD7, 0x6A, 0x06, 0x2C, 0xA5, 0xD8, 0x5A, 0x9D,
+			0x7A, 0xA4, 0x21, 0x55, 0x9F, 0xF9, 0x3E, 0xBF, 0x16, 0xF6, 0x07, 0xC2, 0xB9, 0x6E, 0x87, 0x9E,
+			0xB5, 0x1C, 0xBE, 0x97, 0xFA, 0x82, 0x7E, 0xED, 0x30, 0xD4, 0x66, 0x3F, 0xDE, 0xD8, 0x1B, 0x4B,
+			0x15, 0xD9, 0xFB, 0x2F, 0x50, 0xF0, 0x9D, 0x1D, 0x52, 0x4C, 0x1C, 0x4D, 0x8D, 0xAE, 0x85, 0x1E,
+			0xEA, 0x7F, 0x86, 0xF3, 0x0B, 0x7B, 0x87, 0x81, 0x98, 0x23, 0x80, 0x63, 0x4F, 0x2F, 0xB0, 0x62,
+			0xCC, 0x6E, 0xD2, 0x46, 0x13, 0x65, 0x2B, 0xD6, 0x44, 0x33, 0x59, 0xB5, 0x8F, 0xB9, 0x4A, 0xA9,}
+		},
+		{
+			0x01, 
+			{0x9A, 0xBC, 0x88, 0xBD, 0x0A, 0xBE, 0xD7, 0x0C, 0x9B, 0x42, 0x75, 0x65, 0x38, 0x5E, 0xD1, 0x01,
+			0xCD, 0x12, 0xAE, 0xEA, 0xE9, 0x4B, 0xDB, 0xB4, 0x5E, 0x36, 0x10, 0x96, 0xDA, 0x3D, 0x2E, 0x66,
+			0xD3, 0x99, 0x13, 0x8A, 0xBE, 0x67, 0x41, 0xC8, 0x93, 0xD9, 0x3E, 0x42, 0xCE, 0x34, 0xCE, 0x96,
+			0xFA, 0x0B, 0x23, 0xCC, 0x2C, 0xDF, 0x07, 0x3F, 0x3B, 0x24, 0x4B, 0x12, 0x67, 0x3A, 0x29, 0x36,
+			0xA3, 0xAA, 0x06, 0xF0, 0x65, 0xA5, 0x85, 0xBA, 0xFD, 0x12, 0xEC, 0xF1, 0x60, 0x67, 0xF0, 0x8F,
+			0xD3, 0x5B, 0x01, 0x1B, 0x1E, 0x84, 0xA3, 0x5C, 0x65, 0x36, 0xF9, 0x23, 0x7E, 0xF3, 0x26, 0x38,
+			0x64, 0x98, 0xBA, 0xE4, 0x19, 0x91, 0x4C, 0x02, 0xCF, 0xC9, 0x6D, 0x86, 0xEC, 0x1D, 0x41, 0x69,
+			0xDD, 0x56, 0xEA, 0x5C, 0xA3, 0x2A, 0x58, 0xB4, 0x39, 0xCC, 0x40, 0x31, 0xFD, 0xFB, 0x42, 0x74,
+			0xF8, 0xEC, 0xEA, 0x00, 0xF0, 0xD9, 0x28, 0xEA, 0xFA, 0x2D, 0x00, 0xE1, 0x43, 0x53, 0xC6, 0x32,
+			0xF4, 0xA2, 0x07, 0xD4, 0x5F, 0xD4, 0xCB, 0xAC, 0xCA, 0xFF, 0xDF, 0x84, 0xD2, 0x86, 0x14, 0x3C,
+			0xDE, 0x22, 0x75, 0xA5, 0x73, 0xFF, 0x68, 0x07, 0x4A, 0xF9, 0x7C, 0x2C, 0xCC, 0xDE, 0x45, 0xB6,
+			0x54, 0x82, 0x90, 0x36, 0x1F, 0x2C, 0x51, 0x96, 0xC5, 0x0A, 0x53, 0x5B, 0xF0, 0x8B, 0x4A, 0xAA,
+			0x3B, 0x68, 0x97, 0x19, 0x17, 0x1F, 0x01, 0xB8, 0xED, 0xB9, 0x9A, 0x5E, 0x08, 0xC5, 0x20, 0x1E,
+			0x6A, 0x09, 0xF0, 0xE9, 0x73, 0xA3, 0xBE, 0x10, 0x06, 0x02, 0xE9, 0xFB, 0x85, 0xFA, 0x5F, 0x01,
+			0xAC, 0x60, 0xE0, 0xED, 0x7D, 0xB9, 0x49, 0xA8, 0x9E, 0x98, 0x7D, 0x91, 0x40, 0x05, 0xCF, 0xF9,
+			0x1A, 0xFC, 0x40, 0x22, 0xA8, 0x96, 0x5B, 0xB0, 0xDC, 0x7A, 0xF5, 0xB7, 0xE9, 0x91, 0x4C, 0x49,}
+		},
+	};
+
+	static const std::vector<sRsaKeyForGeneration> kDevAcidSignModulus = 
+	{
+		{
+			0x00, 
+			{0xD6, 0x34, 0xA5, 0x78, 0x6C, 0x68, 0xCE, 0x5A, 0xC2, 0x37, 0x17, 0xF3, 0x82, 0x45, 0xC6, 0x89,
+			0xE1, 0x2D, 0x06, 0x67, 0xBF, 0xB4, 0x06, 0x19, 0x55, 0x6B, 0x27, 0x66, 0x0C, 0xA4, 0xB5, 0x87,
+			0x81, 0x25, 0xF4, 0x30, 0xBC, 0x53, 0x08, 0x68, 0xA2, 0x48, 0x49, 0x8C, 0x3F, 0x38, 0x40, 0x9C,
+			0xC4, 0x26, 0xF4, 0x79, 0xE2, 0xA1, 0x85, 0xF5, 0x5C, 0x7F, 0x58, 0xBA, 0xA6, 0x1C, 0xA0, 0x8B,
+			0x84, 0x16, 0x14, 0x6F, 0x85, 0xD9, 0x7C, 0xE1, 0x3C, 0x67, 0x22, 0x1E, 0xFB, 0xD8, 0xA7, 0xA5,
+			0x9A, 0xBF, 0xEC, 0x0E, 0xCF, 0x96, 0x7E, 0x85, 0xC2, 0x1D, 0x49, 0x5D, 0x54, 0x26, 0xCB, 0x32,
+			0x7C, 0xF6, 0xBB, 0x58, 0x03, 0x80, 0x2B, 0x5D, 0xF7, 0xFB, 0xD1, 0x9D, 0xC7, 0xC6, 0x2E, 0x53,
+			0xC0, 0x6F, 0x39, 0x2C, 0x1F, 0xA9, 0x92, 0xF2, 0x4D, 0x7D, 0x4E, 0x74, 0xFF, 0xE4, 0xEF, 0xE4,
+			0x7C, 0x3D, 0x34, 0x2A, 0x71, 0xA4, 0x97, 0x59, 0xFF, 0x4F, 0xA2, 0xF4, 0x66, 0x78, 0xD8, 0xBA,
+			0x99, 0xE3, 0xE6, 0xDB, 0x54, 0xB9, 0xE9, 0x54, 0xA1, 0x70, 0xFC, 0x05, 0x1F, 0x11, 0x67, 0x4B,
+			0x26, 0x8C, 0x0C, 0x3E, 0x03, 0xD2, 0xA3, 0x55, 0x5C, 0x7D, 0xC0, 0x5D, 0x9D, 0xFF, 0x13, 0x2F,
+			0xFD, 0x19, 0xBF, 0xED, 0x44, 0xC3, 0x8C, 0xA7, 0x28, 0xCB, 0xE5, 0xE0, 0xB1, 0xA7, 0x9C, 0x33,
+			0x8D, 0xB8, 0x6E, 0xDE, 0x87, 0x18, 0x22, 0x60, 0xC4, 0xAE, 0xF2, 0x87, 0x9F, 0xCE, 0x09, 0x5C,
+			0xB5, 0x99, 0xA5, 0x9F, 0x49, 0xF2, 0xD7, 0x58, 0xFA, 0xF9, 0xC0, 0x25, 0x7D, 0xD6, 0xCB, 0xF3,
+			0xD8, 0x6C, 0xA2, 0x69, 0x91, 0x68, 0x73, 0xB1, 0x94, 0x6F, 0xA3, 0xF3, 0xB9, 0x7D, 0xF8, 0xE0,
+			0x72, 0x9E, 0x93, 0x7B, 0x7A, 0xA2, 0x57, 0x60, 0xB7, 0x5B, 0xA9, 0x84, 0xAE, 0x64, 0x88, 0x69}
+		},
+		{
+			0x01, 
+			{0xBC, 0xA5, 0x6A, 0x7E, 0xEA, 0x38, 0x34, 0x62, 0xA6, 0x10, 0x18, 0x3C, 0xE1, 0x63, 0x7B, 0xF0,
+			0xD3, 0x08, 0x8C, 0xF5, 0xC5, 0xC4, 0xC7, 0x93, 0xE9, 0xD9, 0xE6, 0x32, 0xF3, 0xA0, 0xF6, 0x6E,
+			0x8A, 0x98, 0x76, 0x47, 0x33, 0x47, 0x65, 0x02, 0x70, 0xDC, 0x86, 0x5F, 0x3D, 0x61, 0x5A, 0x70,
+			0xBC, 0x5A, 0xCA, 0xCA, 0x50, 0xAD, 0x61, 0x7E, 0xC9, 0xEC, 0x27, 0xFF, 0xE8, 0x64, 0x42, 0x9A,
+			0xEE, 0xBE, 0xC3, 0xD1, 0x0B, 0xC0, 0xE9, 0xBF, 0x83, 0x8D, 0xC0, 0x0C, 0xD8, 0x00, 0x5B, 0x76,
+			0x90, 0xD2, 0x4B, 0x30, 0x84, 0x35, 0x8B, 0x1E, 0x20, 0xB7, 0xE4, 0xDC, 0x63, 0xE5, 0xDF, 0xCD,
+			0x00, 0x5F, 0x81, 0x5F, 0x67, 0xC5, 0x8B, 0xDF, 0xFC, 0xE1, 0x37, 0x5F, 0x07, 0xD9, 0xDE, 0x4F,
+			0xE6, 0x7B, 0xF1, 0xFB, 0xA1, 0x5A, 0x71, 0x40, 0xFE, 0xBA, 0x1E, 0xAE, 0x13, 0x22, 0xD2, 0xFE,
+			0x37, 0xA2, 0xB6, 0x8B, 0xAB, 0xEB, 0x84, 0x81, 0x4E, 0x7C, 0x1E, 0x02, 0xD1, 0xFB, 0xD7, 0x5D,
+			0x11, 0x84, 0x64, 0xD2, 0x4D, 0xBB, 0x50, 0x00, 0x67, 0x54, 0xE2, 0x77, 0x89, 0xBA, 0x0B, 0xE7,
+			0x05, 0x57, 0x9A, 0x22, 0x5A, 0xEC, 0x76, 0x1C, 0xFD, 0xE8, 0xA8, 0x18, 0x16, 0x41, 0x65, 0x03,
+			0xFA, 0xC4, 0xA6, 0x31, 0x5C, 0x1A, 0x7F, 0xAB, 0x11, 0xC8, 0x4A, 0x99, 0xB9, 0xE6, 0xCF, 0x62,
+			0x21, 0xA6, 0x72, 0x47, 0xDB, 0xBA, 0x96, 0x26, 0x4E, 0x2E, 0xD4, 0x8C, 0x46, 0xD6, 0xA7, 0x1A,
+			0x6C, 0x32, 0xA7, 0xDF, 0x85, 0x1C, 0x03, 0xC3, 0x6D, 0xA9, 0xE9, 0x68, 0xF4, 0x17, 0x1E, 0xB2,
+			0x70, 0x2A, 0xA1, 0xE5, 0xE1, 0xF3, 0x8F, 0x6F, 0x63, 0xAC, 0xEB, 0x72, 0x0B, 0x4C, 0x4A, 0x36,
+			0x3C, 0x60, 0x91, 0x9F, 0x6E, 0x1C, 0x71, 0xEA, 0xD0, 0x78, 0x78, 0xA0, 0x2E, 0xC6, 0x32, 0x6B}
+		},
+	};
+
+	if (isDev)
+	{
+		if (xci_header_sign_key.isNull())
+			xci_header_sign_key = tc::crypto::RsaPublicKey(kXciHeaderSignModulus.data(), kXciHeaderSignModulus.size());
+
+		if (xci_cert_sign_key.isNull())
+			xci_cert_sign_key = tc::crypto::RsaPublicKey(kXciCertSignModulus.data(), kXciCertSignModulus.size());
+
+		if (pkg2_sign_key.isNull())
+			pkg2_sign_key = tc::crypto::RsaPublicKey(kDevPackage2HeaderModulus.data(), kDevPackage2HeaderModulus.size());
+
+		for (auto itr = kDevNcaHeaderSign0Modulus.begin(); itr != kDevNcaHeaderSign0Modulus.end(); itr++)
+		{
+			if (nca_header_sign0_key.find(itr->generation) == nca_header_sign0_key.end())
+				nca_header_sign0_key[itr->generation] = tc::crypto::RsaPublicKey(itr->modulus.data(), itr->modulus.size());
+		}
+
+		for (auto itr = kDevAcidSignModulus.begin(); itr != kDevAcidSignModulus.end(); itr++)
+		{
+			if (acid_sign_key.find(itr->generation) == acid_sign_key.end())
+				acid_sign_key[itr->generation] = tc::crypto::RsaPublicKey(itr->modulus.data(), itr->modulus.size());
+		}
+	}
+	else
+	{
+		if (xci_header_sign_key.isNull())
+			xci_header_sign_key = tc::crypto::RsaPublicKey(kXciHeaderSignModulus.data(), kXciHeaderSignModulus.size());
+
+		if (xci_cert_sign_key.isNull())
+			xci_cert_sign_key = tc::crypto::RsaPublicKey(kXciCertSignModulus.data(), kXciCertSignModulus.size());
+
+		if (pkg2_sign_key.isNull())
+			pkg2_sign_key = tc::crypto::RsaPublicKey(kProdPackage2HeaderModulus.data(), kProdPackage2HeaderModulus.size());
+
+		for (auto itr = kProdNcaHeaderSign0Modulus.begin(); itr != kProdNcaHeaderSign0Modulus.end(); itr++)
+		{
+			if (nca_header_sign0_key.find(itr->generation) == nca_header_sign0_key.end())
+				nca_header_sign0_key[itr->generation] = tc::crypto::RsaPublicKey(itr->modulus.data(), itr->modulus.size());
+		}
+
+		for (auto itr = kProdAcidSignModulus.begin(); itr != kProdAcidSignModulus.end(); itr++)
+		{
+			if (acid_sign_key.find(itr->generation) == acid_sign_key.end())
+				acid_sign_key[itr->generation] = tc::crypto::RsaPublicKey(itr->modulus.data(), itr->modulus.size());
+		}
+	}
 }
\ No newline at end of file
diff --git a/src/KeyBag.h b/src/KeyBag.h
index 0e3ab9b..a7cb369 100644
--- a/src/KeyBag.h
+++ b/src/KeyBag.h
@@ -48,6 +48,7 @@ struct KeyBag
 	// xci
 	tc::Optional<rsa_key_t> xci_header_sign_key;
 	std::map<byte_t, aes128_key_t> xci_header_key;
+	tc::Optional<rsa_key_t> xci_cert_sign_key;
 
 	// ticket
 	std::map<key_generation_t, aes128_key_t> etik_common_key;
@@ -76,6 +77,8 @@ private:
 	void importTitleKeyFile(const tc::io::Path& keyfile_path);
 	void importCertificateChain(const tc::io::Path& cert_path);
 	void importTicket(const tc::io::Path& tik_path);
+
+	void importKnownKeys(bool isDev);
 };
 
 }
\ No newline at end of file