The story of Jamal Malik, an 18 year-old orphan from the slums of Mumbai, who is about experience the biggest daily of his life. With the whole nation watching, he is just one question away from winning a staggering 20 millions rupees on India’s “Who wants to be a millionaire?”. But when the show breaks for the night, police arrest him on suspicion of cheating. How could a street kid know so much? Desperate to prove his innocence, Jamal tells the story of his life in the slum where he and his brother grew up, of their adventures together on the road, of vicious encounters with local gangs, and of Latika, the girl he loved and lost. Each chapter of his story reveals the key to the answer to one of the game show’s questions. Intrigue by Jamal’s story, the jaded Police Inspector begins to wonder what a young man with no apparent desire for riches is really doing on this game story?

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Setelah membaca blog mas Vavai di sini, saya jadi tertarik membahas penggunaan mcrypt di ubuntu. Isinya sih sama persis, hanya saja perintah instalasinya yg sedikit berbeda di ubuntu. Benar2 copas abis. hehehe

Sedikit penjelasan, MCrypt adalah pengganti package crypt() dan perintah crypt(1) pada lingkungan unix/linux. MCrypt berguna sekali untuk para developer yang mengembangkan sebuah aplikasi dengan cara memanggil fungsi yang terdapat di dalam MCrypt tanpa harus melakukan perubahan besar daam kode aplikasinya. Maksudnya, developer hanya tinggal memanggil fungsi yang telah disediakan, ke dalam aplikasi mereka tanpa perlu melakukan banyak perubahan di dalam kode program mereka. Hal ini juga mempermudah kita sebagai user untuk menggunakan MCrypt pada sebuah file untuk keperluan privasi, tanpa harus menjadi kriptografer.

MCrypt terinstal bersama dengan Libmcrypt, yang merupakan library dimana fungsi2 enkripsi di definisikan bersama mekanisme standardisasi dan bagaimana cara mengakses fungsi2 tsb.

Kalau di postingan mas Vavai, beliau mengintal menggunakan openSuSE via zypper, maka di Ubuntu instalasi MCrypt menggunakan apt-get. Berikut cara instalasinya:

sudo apt-get install mcrypt

tunggu hingga proses instalasi selesai dilakukan, anda dapat mulai memproteksi file2 penting anda. Contoh saya mempunyai file Presentasi_TA_Wildan.ppt, maka perintahnya secara sederhana adalah sbb:

mcrypt -a arcfour Presentasi_TA_Wildan.ppt

akan ditanyakan passphrase terlebih dahulu, setelah itu maka akan terbentuk file yg sama dengan akhiran ekstensi .nc, sehingga menjadi Presentasi_TA_Wildan.ppt.nc. Parameter a adalah jenis algoritma yang digunakan, dalam hal ini adalah RC4.

Algoritma lain yang dapat digunakan adalah rijndael(AES) 128 bit, 192 bit maupun 256 bit, twofish, blowfish, loki97, RC2, RC4, enigma, DES, dan beberapa algoritma enkripsi lain yang mungkin jarang terdengar, seperti wake, gost dan cast. Perintah yg dapat digunakan untuk melihat daftar algoritma yg tersedia adalah mcrypt –list.

Untuk mendekrip file yang telah terenkripsi, dapat menggunakan parameter -d disertai nama file berekstensi .nc yang telah di enkripsi sebelumnya, sehingga perintahnya menjadi

mcrypt -d Presentasi_TA_Wildan.ppt.nc

Maka file Presentasi_TA_Wildan.ppt dapat saya buka kembali

Untuk menggunakan algoritma hash, anda dapat menggunakan perintah spt ini:
mcrypt -h Presentasi_TA_Wildan.ppt

Tapi anehnya, untuk algoritma hash ini, bisa juga di dekripsikan, padahal setau saya algoritma hash adalah algoritma yang bersifat satu arah (one-way hash function), atau hanya bisa di enkripsi, tidak ada dekripsi. Mohon koreksi jika saya salah.

Perintah untuk mendekripsikan, tidak ada bedanya dengan perintah dekripsi pada algoritma standar.

mcrypt -d Presentasi_TA_Wildan.ppt.nc

Dan file yg terbentukpun juga sama dengan yg aslinya.
Beberapa algoritma yang dapat digunakan untuk hash adalah md[2-5], crc32, sha1, tiger, whirlpool, haval, dll.

Sayang dari semua algoritma tsb, algoritma buatan anak bangsa, BC3, tidak dimasukkan ke dalam pilihan. Padahal saya berharap juga BC3 dikenali oleh MCrypt sebagai salah satu alternatif algoritma enkripsi.

Sumber:
http://vavai.com/v2/2009/01/lindungi-file-penting-anda-dengan-enkripsi/
http://mcrypt.hellug.gr/
http://mcrypt.sourceforge.net/
Algoritma Enkripsi Indonesia BC3

For about 2 years I have been work at my current office. This month I was receive a retain. That is a new motorcycle. Another shape of transportation cost given by company to their officers who has dedicate himself for 1 year. Off course there are advantage and disadvantage of having new motorcycle. For those who love using public transportation, motorcycle could be one alternative transportation to ride and push the transportation cost. But for those who have motorcycle before, they might have the same feeling. Some people has switching it, other might selling it and get the money used for another purposes.

Honestly, for me, this kind is not quite different between using new motorcycle and the old one. They both have positive and negative side, but the one certainly is how they consume fuel. My new motorcycle is Honda Blade, AFAIK Honda motorcycle is one of the best for consuming fuel in efficiency side, CMIIW. No matter what the fuel is, Premium or Pertamax. FYI, I have been ride my old Honda Astrea from Sunter to Pondok Aren, Bintaro, this motorcycle has consume only 1/4 bar. Damn, nice distance, huh?

I wish my Blade can help me pass through the journey of my ’street’ life, just like Astrea did.

February, one month from twelve month in a year, have a fewer days than other month. But I don’t really know the phenomenon happens within it in this year. Averagely, my close friends is about to having marriage in their young age (Do you think I am young or old? ). 25 years old maybe is the mature age for having marriage and ready for commitment to serious relationship, just like me, I am 25 years old, but marriage still being a plan. In my view, how could they having marriage at the same time, in a week and same days. At this time, I just having 3 invitation in this day. Last week, 2 invitation came to me. Then next week, although it is not February anymore, I will have 1 marriage invitation from my girlfriend’s friend. Accidental case, maybe.

Well, I might only can pray for their happiness, and wish they would be blessing and being soulmate forever. However, marriage is priceless event that nobody did not want to loose or missed, due to this is an unforgettable moment, so having marriage would be one of dream for people. OMG, I said those words just like I have been married before, but the fact is I am still single.

Once I read from Republika online, one of national newspaper from Indonesia, about health issue. I found interest article written in Bahasa Indonesia about asthma. Basically I have no asthmatic suffer or disease, but content of this article may be useful for you who suffering asthma.

For you living in the big city, pollution is one of our daily enemy. Especially for those workers using public transportation or motorcycle would feel uncomfortable when pollution is smelled everyday, when going to office and coming home. Except, they who have private car. They may close the window to avoid air pollution produce by buses. One of impact beside lung cancer, is asthma. Asthma can be caused by air pollution.

Vitamin D generated by our body helped by sunlight and food we eat in little portion is extremely vital for lung’s growth. So, Vitamin D produce by sunlight have relationship with lung’s in order to make good composition in someone’s health. In this case, Sunlight, have a big impact to produce vitamin D in the body, and they have function to push asthma itself. Don’t be hesitate to make yourself healthy by fairly sunbathing. But remember, don’t be excessive, it can damage your skin and one of the skin cancer reason.

Take your time in the morning at 8 o’clock till 10 o’clock, about 30 minutes to your body in order to absorb vitamin D produce by sunlight. It may helpful to generate new cell in your body to replace dead cell. In other case, sunlight might help you to develop Calcium useful for your bones.

Happy sunbathing!

Source from : http://republika.co.id/berita/32392/Kena_Asma_Berjemur_Yuk