Difference between revisions of "SceLibSsl"

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== Library ==
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This module implements TLS for the PS Vita in most use cases (including PSN access). Notably, WebKit does not seem to use this but it shares the CA list in <code>vs0:data/external/cert/CA_LIST.cer</code>. CA_LIST.cer includes all the usual root CAs and in addition, 5 SCE signed ROOT CAs. Note that because the SCE root CAs are also used in WebKit and other apps (email for example), it is possible for Sony to do a [https://en.wikipedia.org/wiki/Man-in-the-middle_attack MITM] attack on any of their users. This is a privacy hole for users, but it seems that the same policy is in place in PSP, PS3, and likely PS4 as well. Although CA_LIST.cer is unsigned, just like in later PS3 firmwares, Sony stores the hash of all certificates in [[SceLibSsl]] (which itself is signed). This makes impossible a theoretical attack of adding a root CA on an updated PS Vita in order to extract the platform passphrase.
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== Module ==
  
=== Known NIDs ===
 
 
{| class="wikitable"
 
{| class="wikitable"
 
|-
 
|-
! Version !! Name !! World !! Privilege !! NID
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! Version !! Name !! World !! Privilege
 
|-
 
|-
| 1.69 || SceLibSsl || Non-secure || User || 0x190A246C
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| 3.60 || SceLibSsl || Non-secure || User
 
|}
 
|}
  
== Modules ==
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== Libraries ==
  
 
=== Known NIDs ===
 
=== Known NIDs ===
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|-
 
|-
 
! Version !! Name !! World !! Visibility !! NID
 
! Version !! Name !! World !! Visibility !! NID
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|-
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| 3.60 || SceSsl || Non-secure || User || 0xCAF5F2E9
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|-
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| 3.60 || SceSslInternal || Non-secure || User || 0x68D6C3FF
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|}
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== SceSslInternal ==
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=== internal_get_ca ===
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{| class="wikitable"
 +
! Version !! NID
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|-
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| 3.60 || 0x064DFC99
 
|}
 
|}
  
[[Category:Libraries]]
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Obtains a certificate from <code>vs0:data/external/cert/CA_LIST.cer</code>. If <code>unk</code>, <code>buf</code>, and <code>unk2</code> are zero, then get the size of the certificate. Otherwise, load the certificate (PEM) into <code>buf</code>. The file offset and size in <code>CA_LIST.cer</code> are hardcoded into the function for each given id pair. There is also a hardcoded list of SHA1 hashes for each certificate that is checked against before returning.
[[Category:Userland]]
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<source lang="C">int internal_get_ca(int id1, int id2, int unk, char *buf, int unk2, size_t *size);</source>
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[[Category:Modules]][[Category:Usermode]]

Latest revision as of 17:13, 6 November 2021

This module implements TLS for the PS Vita in most use cases (including PSN access). Notably, WebKit does not seem to use this but it shares the CA list in vs0:data/external/cert/CA_LIST.cer. CA_LIST.cer includes all the usual root CAs and in addition, 5 SCE signed ROOT CAs. Note that because the SCE root CAs are also used in WebKit and other apps (email for example), it is possible for Sony to do a MITM attack on any of their users. This is a privacy hole for users, but it seems that the same policy is in place in PSP, PS3, and likely PS4 as well. Although CA_LIST.cer is unsigned, just like in later PS3 firmwares, Sony stores the hash of all certificates in SceLibSsl (which itself is signed). This makes impossible a theoretical attack of adding a root CA on an updated PS Vita in order to extract the platform passphrase.

Module

Version Name World Privilege
3.60 SceLibSsl Non-secure User

Libraries

Known NIDs

Version Name World Visibility NID
3.60 SceSsl Non-secure User 0xCAF5F2E9
3.60 SceSslInternal Non-secure User 0x68D6C3FF

SceSslInternal

internal_get_ca

Version NID
3.60 0x064DFC99

Obtains a certificate from vs0:data/external/cert/CA_LIST.cer. If unk, buf, and unk2 are zero, then get the size of the certificate. Otherwise, load the certificate (PEM) into buf. The file offset and size in CA_LIST.cer are hardcoded into the function for each given id pair. There is also a hardcoded list of SHA1 hashes for each certificate that is checked against before returning.

int internal_get_ca(int id1, int id2, int unk, char *buf, int unk2, size_t *size);