APT:Wrap - Revision history

Wwylele: rename a param and make a more intuitive description

2016-12-30T09:04:42Z

rename a param and make a more intuitive description

← Older revision		Revision as of 12:04, 30 December 2016
Line 15:		Line 15:
	\|-		\|-
	\| 3		\| 3
	\| ~~Block Size~~		\| Nonce Offset
	\|-		\|-
	\| 4		\| 4
Line 47:		Line 47:

	=Description=		=Description=
	This encrypts the input data with [[PS:EncryptSignDecryptVerifyAesCcm\|AES-CCM]] using keytype2, when the input noncesize is <12 the low 2-bits are cleared in the noncesize. The 12-byte nonce buffer used by NS is cleared to all-zero, then the nonce from inputbuf+~~blocksize~~ with the noncesize is copied to this nonce buffer. NS then copies the data at inputbuf+0 to outbuf+noncesize, with the ~~blocksize~~.		This encrypts the input data with [[PS:EncryptSignDecryptVerifyAesCcm\|AES-CCM]] using keytype2, when the input noncesize is <12 the low 2-bits are cleared in the noncesize. The 12-byte nonce buffer used by NS is cleared to all-zero, then the nonce from inputbuf+nonceoffset with the noncesize is copied to this nonce buffer. NS then copies the data at inputbuf+0 to outbuf+noncesize, with the nonceoffset.

	NS then copies the data at inbuf+~~blocksize~~+noncesize to outbuf+~~blocksize~~+noncesize, with size inputbuffersize-~~blocksize~~-noncesize. NS then uses [[PS:EncryptSignDecryptVerifyAesCcm]] with keytype2 and with the above nonce buffer, where the input/output buffer ptrs are outbuf+noncesize, with size ~~blocksize~~+(inputbuffersize-~~blocksize~~-noncesize). NS then copies the the nonce from the nonce-buffer with the noncesize, to outbuf+0.		NS then copies the data at inbuf+nonceoffset+noncesize to outbuf+nonceoffset+noncesize, with size inputbuffersize-nonceoffset-noncesize. NS then uses [[PS:EncryptSignDecryptVerifyAesCcm]] with keytype2 and with the above nonce buffer, where the input/output buffer ptrs are outbuf+noncesize, with size nonceoffset+(inputbuffersize-nonceoffset-noncesize). NS then copies the the nonce from the nonce-buffer with the noncesize, to outbuf+0.

			In other words, the nonce with noncesize located at nonceoffset in the input buffer is copied to the beginning of the output buffer. The rest of the input data are concatenated, encrypted via [[PS:EncryptSignDecryptVerifyAesCcm]] using the said nonce (padded or capped to 12 bytes), and then written to outbuf+noncesize.

Wwylele: correct the formula. confirmed by the assembly

2016-12-30T08:51:58Z

correct the formula. confirmed by the assembly

← Older revision		Revision as of 11:51, 30 December 2016
Line 49:		Line 49:
	This encrypts the input data with [[PS:EncryptSignDecryptVerifyAesCcm\|AES-CCM]] using keytype2, when the input noncesize is <12 the low 2-bits are cleared in the noncesize. The 12-byte nonce buffer used by NS is cleared to all-zero, then the nonce from inputbuf+blocksize with the noncesize is copied to this nonce buffer. NS then copies the data at inputbuf+0 to outbuf+noncesize, with the blocksize.		This encrypts the input data with [[PS:EncryptSignDecryptVerifyAesCcm\|AES-CCM]] using keytype2, when the input noncesize is <12 the low 2-bits are cleared in the noncesize. The 12-byte nonce buffer used by NS is cleared to all-zero, then the nonce from inputbuf+blocksize with the noncesize is copied to this nonce buffer. NS then copies the data at inputbuf+0 to outbuf+noncesize, with the blocksize.

	NS then copies the data at inbuf+blocksize+noncesize to outbuf+blocksize, with size inputbuffersize-blocksize-noncesize. NS then uses [[PS:EncryptSignDecryptVerifyAesCcm]] with keytype2 and with the above nonce buffer, where the input/output buffer ptrs are outbuf+noncesize, with size blocksize+(inputbuffersize-blocksize-noncesize). NS then copies the the nonce from the nonce-buffer with the noncesize, to outbuf+0.		NS then copies the data at inbuf+blocksize+noncesize to outbuf+blocksize+noncesize, with size inputbuffersize-blocksize-noncesize. NS then uses [[PS:EncryptSignDecryptVerifyAesCcm]] with keytype2 and with the above nonce buffer, where the input/output buffer ptrs are outbuf+noncesize, with size blocksize+(inputbuffersize-blocksize-noncesize). NS then copies the the nonce from the nonce-buffer with the noncesize, to outbuf+0.

Steveice10 at 03:28, 22 November 2015

2015-11-22T02:28:33Z

← Older revision		Revision as of 05:28, 22 November 2015
Line 9:		Line 9:
	\|-		\|-
	\| 1		\| 1
	\| Output ~~buffer size~~		\| Output Size
	\|-		\|-
	\| 2		\| 2
	\| Input ~~buffer size~~		\| Input Size
	\|-		\|-
	\| 3		\| 3
	\| Block ~~size~~		\| Block Size
	\|-		\|-
	\| 4		\| 4
	\| Nonce ~~size, size~~ 12 ~~is used if this is >12.~~		\| Nonce Size (capped to 12)
	\|-		\|-
	\| 5		\| 5
	\| (~~inputbufsize~~<<4) <nowiki>\|</nowiki> 10		\| (Input Size << 4) <nowiki>\|</nowiki> 0xA
	\|-		\|-
	\| 6		\| 6
	\| Input ~~cleartext data buffer ptr~~		\| void*, Input
	\|-		\|-
	\| 7		\| 7
	\| (~~outputbufsize~~<<4) <nowiki>\|</nowiki> 12		\| (Output Size << 4) <nowiki>\|</nowiki> 0xC
	\|-		\|-
	\| 8		\| 8
	\| Output ~~encrypted data buffer ptr~~		\| void*, Output
	\|}		\|}

Yellows8 at 22:24, 31 May 2013

2013-05-31T20:24:03Z

← Older revision		Revision as of 00:24, 1 June 2013
Line 47:		Line 47:

	=Description=		=Description=
	This encrypts the input data with [[PS:EncryptSignDecryptVerifyAesCcm\|AES-CCM]] using keytype2. The 12-byte nonce buffer used by NS is cleared to all-zero, then the nonce from inputbuf+blocksize with the noncesize is copied to this nonce buffer. NS then copies the data at inputbuf+0 to outbuf+noncesize, with the blocksize.		This encrypts the input data with [[PS:EncryptSignDecryptVerifyAesCcm\|AES-CCM]] using keytype2, when the input noncesize is <12 the low 2-bits are cleared in the noncesize. The 12-byte nonce buffer used by NS is cleared to all-zero, then the nonce from inputbuf+blocksize with the noncesize is copied to this nonce buffer. NS then copies the data at inputbuf+0 to outbuf+noncesize, with the blocksize.

	NS then copies the data at inbuf+blocksize+noncesize to outbuf+blocksize, with size inputbuffersize-blocksize-noncesize. NS then uses [[PS:EncryptSignDecryptVerifyAesCcm]] with keytype2 and with the above nonce buffer, where the input/output buffer ptrs are outbuf+noncesize, with size blocksize+(inputbuffersize-blocksize-noncesize). NS then copies the the nonce from the nonce-buffer with the noncesize, to outbuf+0.		NS then copies the data at inbuf+blocksize+noncesize to outbuf+blocksize, with size inputbuffersize-blocksize-noncesize. NS then uses [[PS:EncryptSignDecryptVerifyAesCcm]] with keytype2 and with the above nonce buffer, where the input/output buffer ptrs are outbuf+noncesize, with size blocksize+(inputbuffersize-blocksize-noncesize). NS then copies the the nonce from the nonce-buffer with the noncesize, to outbuf+0.

Yellows8: Created page with "=Request= {| class="wikitable" border="1" |- ! Index Word ! Description |- | 0 | Header code [0x00460104] |- | 1 | Output buffer size |- | 2 | Input buffer size |- | 3 | Block ..."

2013-05-31T19:22:14Z

Created page with "=Request= {| class="wikitable" border="1" |- ! Index Word ! Description |- | 0 | Header code [0x00460104] |- | 1 | Output buffer size |- | 2 | Input buffer size |- | 3 | Block ..."

New page

=Request=
{| class="wikitable" border="1"
|-
! Index Word
! Description
|-
| 0
| Header code [0x00460104]
|-
| 1
| Output buffer size
|-
| 2
| Input buffer size
|-
| 3
| Block size
|-
| 4
| Nonce size, size 12 is used if this is >12.
|-
| 5
| (inputbufsize<<4) <nowiki>|</nowiki> 10
|-
| 6
| Input cleartext data buffer ptr
|-
| 7
| (outputbufsize<<4) <nowiki>|</nowiki> 12
|-
| 8
| Output encrypted data buffer ptr
|}

=Response=
{| class="wikitable" border="1"
|-
! Index Word
! Description
|-
| 0
| Header code
|-
| 1
| Result code
|}

=Description=
This encrypts the input data with [[PS:EncryptSignDecryptVerifyAesCcm|AES-CCM]] using keytype2. The 12-byte nonce buffer used by NS is cleared to all-zero, then the nonce from inputbuf+blocksize with the noncesize is copied to this nonce buffer. NS then copies the data at inputbuf+0 to outbuf+noncesize, with the blocksize.

NS then copies the data at inbuf+blocksize+noncesize to outbuf+blocksize, with size inputbuffersize-blocksize-noncesize. NS then uses [[PS:EncryptSignDecryptVerifyAesCcm]] with keytype2 and with the above nonce buffer, where the input/output buffer ptrs are outbuf+noncesize, with size blocksize+(inputbuffersize-blocksize-noncesize). NS then copies the the nonce from the nonce-buffer with the noncesize, to outbuf+0.