otool: check binary encryption
ΠΡΠΎΠ²Π΅ΡΠΈΡΡ, Π·Π°ΡΠΈΡΡΠΎΠ²Π°Π½ Π»ΠΈ Π±ΠΈΠ½Π°ΡΡ (ΠΏΠΎ ΡΠΌΠΎΠ»ΡΠ°Π½ΠΈΡ, ΠΎΠ½ΠΈ ΠΏΠΎΡΠΈΡΡΠΎΠ²Π°Π½Ρ Π½Π° ΡΡΡΡΠΎΠΉΡΡΠ²Π΅)
ΠΠ°ΡΠΈΡΡΠΎΠ²Π°Π½:
$ cd /var/containers/Bundle/Application/GUID/FB.app/
// ΠΠ΄Π΅ΡΡ Π±ΡΠ΄Π΅Ρ Π±ΠΈΠ½Π°ΡΡ Facebook Π½Π° ΡΠ΅Π»Π΅ΡΠΎΠ½Π΅
$ otool -l Facebook | grep LC_ENCRYPTION_INFO -A5
cmd LC_ENCRYPTION_INFO_64
cmdsize 24
cryptoff 20480
cryptsize 4096
cryptid 1
pad 0
ΠΠ΅ Π·Π°ΡΠΈΡΡΠΎΠ²Π°Π½:
// ΠΠΎΠ»ΡΡΠΈΠ»ΠΈ Facebook.ipa ΡΠ΅ΡΠ΅Π· frida-ios-dump
$ unzip Facebook.ipa
$ cd Payload/Facebook.app/
$ otool -l Facebook | grep LC_ENCRYPTION_INFO -A5
cryptid 0
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