thy09 / libfenc Goto Github PK

Please add the header to the source. 

The parsing code in policy_lang.y doesn't work correctly.  It seems to be 
giving an invalid string 
when it calls policy_leaf().

What steps will reproduce the problem?
1. Setup scheme: abe-setup -m CP
2. Generate user key: abe-keygen -m CP -a 'ONE' -o userCP.key
3. Encryption: abe-enc -m CP -i filename.txt -p "((ONE and TWO) or THREE)" -o 
outfile
4. Decryption: abe-dec -m CP -k userCP.key -f outfile.cpabe

What is the expected output? What do you see instead?
The expected output is any message. However, I see a 'segmentation fault'.

What version of the product are you using? On what operating system?
fenc-0.2.0 on Linux

Please provide any additional information below.
Regardless the return value of libfenc_decrypt(), abe_decrypt() in 
tools/mgabe-dec.c was extracting the AES key. In fact, abe_decrypt() should 
extract the AES key only if libfenc_decrypt() does not return any error.

I have developed a patch (please see the attachment) in which a check has been 
added to avoid the segmentation fault.

Regards,
Rizwan

What steps will reproduce the problem?
1.i have windows 8 in command propmt when i type ./configure its shows 
'.'command is not recognized. Do i want to go to the path where i kept my fenc 
file.
2. And in ubuntu in the terminal i used the command ./configure its also 
showing the error '.' is not recognized. And when i type sudo and configure its 
showing 0 installed like that
3.

What is the expected output? What do you see instead?


What version of the product are you using? On what operating system?

i have downloaded the fenc-0.2.0 tar.gz file and used in windows 8 and in 
Ubuntu.
Please provide any additional information below.

please tell me where i have to use these command and how to install and use it 
please reply me as soon as possible

Thanks in advance.

When I run  ./configure ABI=32 --enable-optimized
It occurs that:
.....(omission)
checking lex library... -lfl
checking whether yytext is a pointer... yes
building for 32-bit architecture ONLY!
checking for pow in -lm... no
************************
m library not found
add its path to LDFLAGS
see ./configure --help
************************

It said that m library not found.

I used command whereis to check the location:
root@loccs-ubuntuvm:~/workspace/fenc-0.2.0# whereis libm
libm: /usr/lib/libm.so /usr/lib/libm.a

Then I set LDFLAGS to add the lib path:
root@loccs-ubuntuvm:~/workspace/fenc-0.2.0# ./configure ABI=32 
--enable-optimized LDFLAGS=-L"/usr/lib"

But it still did not work, the same error appeared!

My OS is ubuntu10.10
Source code I used is fenc-0.2.0

Can anyone help? Thank you!

Hi, after the installation I've tried to run  the command: abe-setup -m CP but 
I get this error

Generating Waters CP scheme parameters...
Initializing library...
    No error (0)
Generating master ABE system parameters...
Could not open d224.param parameters file.
: No such file or directory
Destroying context...
    No error (0)
Shutting down library...
    No error (0)

If I try to locate it I got this:
locate d224.param
/home/ale/Downloads/pbc-0.5.14/param/d224.param
/home/ale/libpbc-code/param/d224.param

Can someone help me please? I've already tried successfully to use the John 
Bethencourt, Amit Sahai cpabe toolkit http://acsc.cs.utexas.edu/cpabe/

What steps will reproduce the problem?
1.
2.
3.

What is the expected output? What do you see instead?


What version of the product are you using? On what operating system?


Please provide any additional information below.
When I run 
    ./configure ABI=32 --enable-optimized
It occurs that :
    m library not found

So, I just run
    1.  ./configure (without ABI=32 --enable-optimized)
    2.   make
    3.   sudo make install

It successed!

However, When I setup using:
   1. abe-setup -m CP
It occurs that:
abe-setup: error while loading shared libraries: libfenc.so.0: cannot open 
shared object file: No such file or directory

I run : locate libfenc.so.0
And get this information:
     installDir/fenc-0.2.0/.libs/libfenc.so.0
     installDir/.libs/libfenc.so.0.0.2
     /usr/local/lib/libfenc.so.0
    /usr/local/lib/libfenc.so.0.0.2

My OS is Linux Mint 16
source code is fenc-0.2.0

Can anybody help? Thank you!

Need to write code that deserializes decryption keys.

Hi, I installed libfenc on ARM platform successfully. In my experiment, 
'abe-setup' function works well. When I execute keygen function, e.g. 
'abe-keygen -m CP -a 'ONE,TWO,THREE,FOUR,FIVE' -o userCP.key' , I get nothing 
output information or hint messages. So, I'm curious about this question. Are 
there any matters should be attentioned?

Bo Liu
[email protected]