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Added rjoudrey code changes for extracting certificates #18

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Added rjoudrey code changes for extracting certificates #18

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02055ca
Added rjoudrey code changes
perfectlylogical Aug 26, 2015
b62bb7a
Updated Make file to work with cert dumping additions
perfectlylogical Aug 26, 2015
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4 changes: 3 additions & 1 deletion Makefile
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
GCC_BIN=`xcrun --sdk iphoneos --find gcc`
SDK=`xcrun --sdk iphoneos --show-sdk-path`
OSXSDK=`xcrun --sdk macosx --show-sdk-path`
#support iPhone 3GS and above, delete armv6 to avoid SDK error
ARCH_FLAGS=-arch armv7 -arch armv7s -arch arm64

Expand All @@ -21,10 +22,11 @@ default: main.o list
@$(GCC_ARM) $(LDFLAGS) main.o -o keychain_dumper

main.o: main.m
ln -s $(OSXSDK)/System/Library/Frameworks/Foundation.framework/Versions/C/Headers/NSTask.h .
$(GCC_ARM) -c main.m

clean:
rm -f keychain_dumper *.o
rm -f keychain_dumper *.o NSTask.h

list:
security find-identity -pcodesigning
Expand Down
50 changes: 46 additions & 4 deletions main.m
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,8 @@

#import <UIKit/UIKit.h>
#import <Security/Security.h>
#import <Foundation/Foundation.h>
#import "NSTask.h"
#import "sqlite3.h"

void printToStdOut(NSString *format, ...) {
Expand All @@ -41,6 +43,46 @@ void printToStdOut(NSString *format, ...) {
[formattedString release];
}

NSString *runProcess(NSString *executablePath, NSArray *args) {
NSPipe *pipe = [NSPipe pipe];
NSFileHandle *file = pipe.fileHandleForReading;

NSTask *task = [[NSTask alloc] init];
task.launchPath = executablePath;
task.arguments = args;
task.standardOutput = pipe;
task.standardError = [NSPipe pipe];
[task launch];

NSData *data = [file readDataToEndOfFile];
[file closeFile];

return [[NSString alloc] initWithData: data encoding: NSUTF8StringEncoding];
}

NSString *saveDataTemporarily(NSData *data) {
NSString *tmpPath = @"/tmp/data";
[data writeToFile:tmpPath atomically:YES];
return tmpPath;
}

NSString *runOpenSSLWithArgs(NSArray *args) {
return runProcess(@"/usr/bin/openssl", args);
}

NSString *runOpenSSLForConversion(NSString *prog, NSData *data) {
NSArray *args = @[prog, @"-inform", @"der", @"-in", saveDataTemporarily(data), @"-outform", @"pem"];
return runOpenSSLWithArgs(args);
}

void printKeyPEM(NSData *data) {
printToStdOut(@"%@\n", runOpenSSLForConversion(@"rsa", data));
}

void printCertPEM(NSData *data) {
printToStdOut(@"%@\n", runOpenSSLForConversion(@"x509", data));
}

void printUsage() {
printToStdOut(@"Usage: keychain_dumper [-e]|[-h]|[-agnick]\n");
printToStdOut(@"<no flags>: Dump Password Keychain Items (Generic Password, Internet Passwords)\n");
Expand Down Expand Up @@ -225,8 +267,8 @@ void printCertificate(NSDictionary *certificateItem) {
printToStdOut(@"Label: %@\n", [certificateItem objectForKey:(id)kSecAttrLabel]);
printToStdOut(@"Serial Number: %@\n", [certificateItem objectForKey:(id)kSecAttrSerialNumber]);
printToStdOut(@"Subject Key ID: %@\n", [certificateItem objectForKey:(id)kSecAttrSubjectKeyID]);
printToStdOut(@"Subject Key Hash: %@\n\n", [certificateItem objectForKey:(id)kSecAttrPublicKeyHash]);

printToStdOut(@"Subject Key Hash: %@\n", [certificateItem objectForKey:(id)kSecAttrPublicKeyHash]);
printCertPEM(certificateItem[@"certdata"]);
}

void printKey(NSDictionary *keyItem) {
Expand Down Expand Up @@ -258,8 +300,8 @@ void printKey(NSDictionary *keyItem) {
printToStdOut(@"For Signatures: %@\n", CFBooleanGetValue((CFBooleanRef)[keyItem objectForKey:(id)kSecAttrCanSign]) == true ? @"True" : @"False");
printToStdOut(@"For Signature Verification: %@\n", CFBooleanGetValue((CFBooleanRef)[keyItem objectForKey:(id)kSecAttrCanVerify]) == true ? @"True" : @"False");
printToStdOut(@"For Key Wrapping: %@\n", CFBooleanGetValue((CFBooleanRef)[keyItem objectForKey:(id)kSecAttrCanWrap]) == true ? @"True" : @"False");
printToStdOut(@"For Key Unwrapping: %@\n\n", CFBooleanGetValue((CFBooleanRef)[keyItem objectForKey:(id)kSecAttrCanUnwrap]) == true ? @"True" : @"False");

printToStdOut(@"For Key Unwrapping: %@\n", CFBooleanGetValue((CFBooleanRef)[keyItem objectForKey:(id)kSecAttrCanUnwrap]) == true ? @"True" : @"False");
printKeyPEM(keyItem[@"v_Data"]);
}

void printIdentity(NSDictionary *identityItem) {
Expand Down