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151 bytes added ,  20:28, 6 April 2019
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Line 53: Line 53:  
| 0x18
 
| 0x18
 
| 0x1
 
| 0x1
| ?
+
| OTP version
 
|-
 
|-
 
| 0x19
 
| 0x19
 
| 0x1
 
| 0x1
| This is the [[CTCert]] issuer type: 0 = retail "Nintendo CA - G3_NintendoCTR2prod", non-zero = dev "Nintendo CA - G3_NintendoCTR2dev".
+
| This determines if the OTP is for a dev system; it indicates the [[CTCert]] issuer type: 0 = retail "Nintendo CA - G3_NintendoCTR2prod", non-zero = dev "Nintendo CA - G3_NintendoCTR2dev".
 
|-
 
|-
 
| 0x1A
 
| 0x1A
 
| 0x6
 
| 0x6
| Manufacturing date (of the SoC?). Usually month(s) before the dates in the logs stored in [[Flash_Filesystem|TWLNAND]]. Each byte is one field: year, month, day, hour, minute, second. Year is encoded as year-1900 so that it fits in one byte.
+
| Manufacturing date (of the SoC?). Usually month(s) before the dates in the logs stored in [[Flash_Filesystem|TWLNAND]]. Each byte is one field: year, month, day, hour, minute, second. Year is encoded as year-1900 so that it fits in one byte. This order matches up with the layout of a <code>struct tm</code>.
 
|-
 
|-
 
| 0x20
 
| 0x20
 
| 0x4
 
| 0x4
| This is the CTCert ECDSA exponent, this is byte-swapped when plaintext_otp+0x18 is >=5.
+
| This is the CTCert expiry time as UNIX timestamp, this is specified in big endian if the OTP version is <5.
 
|-
 
|-
 
| 0x24
 
| 0x24
| 0x2
+
| 0x20
| ?
  −
|-
  −
| 0x26
  −
| 0x1E
   
| This is the CTCert ECDSA privk.
 
| This is the CTCert ECDSA privk.
 
|-
 
|-
 
| 0x44
 
| 0x44
 
| 0x3C
 
| 0x3C
| This is the CTCert ECDSA signature.
+
| This is the CTCert ECDSA signature (sect233r1?/SHA-256).
 
|-
 
|-
 
| 0x80
 
| 0x80
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