weekend with family

I spent the Sunday day with my family at Calor Tropical Pool, that was an awesome day.

Delma Graducao -18 de Outubro 2012

Delma Maria Mendes Adao, de 23 anos de idade recebeu ontem 18 de outubro de 2012, o titulo de licenciada em direito pela faculdade de direito da Universidade Independente de Angola “UnIA” .

A cerimonia de outurga de certificados teve lugar no centro de conferencias de Belas em Luanda.

Parabéns maninha e sucessos em sua carreira profissional.

Delma Adao

Delma e o seu Pai e um colega

Gilson Adao e Delma Adao

Angola qualifica-se ao CAN 2013

A seleção nacional de Angola recebeu hoje e venceu a sua congênere de Zimbabué por duas bolas sem resposta. O combinado nacional que havia perdido a primeira por 3 bolas a 1, venceu devido o golo marcado fora de casa. 

Os golos de Angola foram ambos apontados na primeira parte, e ambos foram marcados pelo Manucho Goncalves. 

Parabéns Palancas Negras.

Liga Portuguesa 12/13 (6ªJ): FC Porto 2-0 Sporting (07-10-2012)

El Classico

As equipes de Barcelona e o Real Madrid defrontaram-se na noite de hoje para a setima jornada da La Liga. O jogo terminou empatado a duas bolas, os golos da duas equipas foram apontados pelas suas estrelas, Lionel Messi e Cristiano Ronaldo.

A equipe de Jose Mourinho marcou primeiro por intermedio do portugues Cristiano Ronaldo, logo depois la pulga empata o jogo numa jogada dividida, resultado com que terminou a primeira parte. No reatamento, Lionel Messi volta a marcar desta feita por intermedio de um livre colocando os catalans em vantagem pela primeira vez no jogo, Aos 80min Cristiano Ronaldo volta a marcar apos uma Assistencia de Ozil.

Com este resultado, a tabela mantem-se na mesma, com o Barcelona no topo da tabela e o Real na 7 posicao a 8 pontos do Barcelona

Luanda com falta de agua e Luz a mais de duas semanas

Luanda com falta de agua e Luz a mais de duas semanas, os responsáveis do governo culpam o fraco caudal dos rios.

Uma desculpa que apenas os mais cegos podem aceitar. Se na época seca também conhecida por cacimbo tivemos sempre agua e luz, tão logo regressamos a época chuvosa, o caudal já diminuiu? Segundo os dados climáticos o pais não esta a sofrer de uma estiagem de momento, então a que se deve a falta do bem precioso? Por mim, só a uma resposta incompetência.. 

African KFC

So earlier today, me and my friend drove to KFC, and the friendly zambian couple ahead of us were politely asking the vendor:

"Ati, mwandi, how much is the streetwise two if done with our own chicken ka?"

Source: https://www.facebook.com/photo.php?fbid=10151106281133208&set=a.491809308207.267616.558088207&type=1&theater

Porto a 100%

O futebol clube do Porto começou a fase de grupo da liga dos campeões com o pé direito, já lá se vão duas vitorias em dois jogos, colocando os campeões portugueses no topo do grupo A. Na primeira jornada o FCP venceu o dínamo por duas bolas sem resposta, enquanto que na segunda jornada recebemos e vencemos o PSG por uma bola sem resposta.

James Rodriguez tem impressionado bastante, o jovem colombiano apontou o golo da vitória dos dragões frente ao PSG.

Forca Portoooooooooooooooooooooooooooo!!!!!

Petro Vence Arquirrival no derby do Girabola

O Petro Atletico de Luanda venceu e convenceu o seu arquirrival 1º de Agosto no final de semana Passado, os tricolores venceram a partida por duas bolas sem respostas. Os tentos dos tricolores foram todos apontados na etapa complementar do encontro. Com esse triunfo os tricolores mantem a chama acessa para o 2º lugar, que e atualmente ocupado pelo arquirrival primeiro de Agosto.

Na hora da verdade ninguém segura o Petro,

Com toda sinceridade ninguém segura o Petro

Coldplay: Biography

Coldplay are a British rock band formed in 1996 by lead vocalist Chris Martin and lead guitarist Jonny Buckland at University College London. After they formed Pectoralz, Guy Berryman joined the group as a bassist and they changed their name to Starfish. Will Champion joined as a drummer, backing vocalist, and multi-instrumentalist, completing the line-up. Manager Phil Harvey is often considered an unofficial fifth member. The band renamed themselves "Coldplay" in 1998, before recording and releasing three EPs; Safety in 1998, Brothers & Sisters as a single in 1999 and The Blue Room in the same year. The latter was their first release on a major label, after signing to Parlophone.


They achieved worldwide fame with the release of the single "Yellow" in 2000, followed by their debut album released in the same year, Parachutes, which was nominated for the Mercury Prize. The band's second album, A Rush of Blood to the Head (2002), was released to critical acclaim and won multiple awards, including NME's Album of the Year, and has been widely considered the best of the Nelson-produced Coldplay albums. Their next release, X&Y, the best-selling album worldwide in 2005, was met with mostly positive reviews upon its release, though some critics felt that it was inferior to its predecessor. The band's fourth studio album, Viva la Vida or Death and All His Friends (2008), was produced by Brian Eno and released again to largely favourable reviews, earning several Grammy nominations and wins at the 51st Grammy Awards. On 24 October 2011, they released their fifth studio album, Mylo Xyloto, which topped the charts in over 34 countries, and was the UK's best-selling rock album of 2011

Source: Wikipedia

MPLA lidera resultados provisórios com 74,46% de voto

Dos 9.757.671 de eleitores, estão escrutinados 5.609.570 que participaram no acto de votação para elegerem o Presidente da República, o Vice-Presidente e os Deputados a Assembleia Nacional.

Estão escrutinados 3.616.658 votos nas 14.896 mesas que correspondem a 58,74%.

MPLA 2.519.403 equivalente a 74, 46%
UNITA 607.063 equivalente a 17, 94%
CASA- CE 153.427 equivalente a 4, 53%
PRS 50.874 equivalente a 1,50%
FNLA 35.115 equivalente a 1, 03%
ND 6.570 equivalente a 0,19%
PAPOD 4.300 equivalente a 0,12%
FUMA 4.007 equivalente a 0,11%
CPO 2.412 equivalente 0, 07%

A CNE, garante que no principio da noite vai voltar a actualizar os dados dos 18 circulos eleitorais, a partir da sala de imprensa das Eleições gerais 2012.

Sera essa a vontade do povo? 

Fonte: www.cne.ao

Dia do voto

Eis a razão da expressão, faz a sua parte para o bem e desenvolvimento do pais! Votem no Melhor 

Explain the purpose, nature, function and operations of Symmetric Encryption Principles. What are the essential ingredients of a symmetric cipher? Differentiate between encryption and decryption.

Symmetric encryption is a class of algorithms for cryptography that use the same cryptographic keys for both encryption of plaintext and decryption of ciphertext. The keys may be identical or there may be a simple transformation to go between the two keys. The keys, in practice, represent a shared secret between two or more parties that can be used to maintain a private information link.

Encryption methods can be extremely efficient, requiring minimal processing, and Both sender and receiver must possess encryption key. If either copy of key is compromised, an intermediate can decrypt and read messages

A symmetric encryption has two components a block cipher and stream cipher. (i) A block cipher operates on groups of bits – typically groups of 64. If the final block of the plaintext message is shorter than 64 bits, it is padded with some regular pattern of 1s and 0s to make a complete block. Block ciphers encrypt each block independently, so the plaintext does not have to be processed in a sequential manner. (ii) A stream cipher generally operates on one bit of plaintext at a time, although some stream ciphers operate on bytes. A component called a keystream generator generates a sequence of bits, usually known as a keystream. In the simplest form of stream cipher, a modulo-2 adder (exclusive-OR or XOR gate) combines each bit in the plaintext with each bit in the keystream to produce the ciphertext. At the receiving end, another modulo-2 adder combines the ciphertext with the keystream to recover the plaintext.

A symmetric encryption has 5 ingredients, which are the following:

1.                 Plaintext: this is the original message or data that is fed into the algorithm as input.

2.                 Encryption algorithm: this algorithm performs various substitutions and transformations on the plaintext.

3.                 Secret Key: is also input to algorithm. The exact substitutions and transformations performed by the algorithm depend on the key.

4.                 Ciphertext: this is the scrambled message produced as output. It depends on the plaintext and secret key.

5.                 Decryption algorithm: this is essentially the encryption algorithm run in reverse. It takes the ciphertext and the same secret key and produces the original plaintext.

Provide several examples of IPSec. What services are provided by IPSec? What is the difference between Transport Mode and Tunnel Mode?

IPSec (Internet Protocol Security) is a capability that can be added to either current version of the internet protocol by means of additional headers. IPsec encompasses three functional areas authentication, confidentiality, and key management.

IPSec provides the capability to secure communications across a LAN, Private and public WANs, and across the internet. Examples of IPSec include the following:

Secure branch office connectivity over the internet: a company can build a secure virtual private network over the internet or over a public WAN. This enables a business to rely heavily on the internet and reduce its need for private networks, saving costs and network management overhead.

Another example of internet protocol security is secure remote access over the internet. On this case, an end user whose system is equipped with IP security protocols can make a local call to an internet service provider and gain secure access to a company network. This reduces the cost of toll charges for travelling employees and telecommuters.

Last but not least, enhancing electronic commerce security, even though some web and electronic commerce applications have built-in security protocols, the use of IPSec enhances that security.

The IPSec provides security services at the IP layer enabling a system to select required security protocols, determine the algorithms to use for services, and put in place any cryptographic keys required to provide the request services. The services provided by the IPSec are the following:

·         Access control

·         Connectionless integrity

·         Data origin authentication

·         Rejection of replayed packets (a form of partial sequence integrity)

·         Confidentiality (encryption)

·         Limited traffic flow confidentiality

The IPsec standards define two distinct modes of IPsec operation, transport mode and tunnel mode. The modes do not affect the encoding of packets. The packets are protected by AH, ESP, or both in each mode. The modes differ in policy application when the inner packet is an IP packet, as follows:

·                    In transport mode, the outer header determines the IPsec policy that protects the inner IP packet.

·                    In tunnel mode, the inner IP packet determines the IPsec policy that protects its contents.

In transport mode, the outer header, the next header, and any ports that the next header supports, can be used to determine IPsec policy. In effect, IPsec can enforce different transport mode policies between two IP addresses to the granularity of a single port. For example, if the next header is TCP, which supports ports, then IPsec policy can be set for a TCP port of the outer IP address. Similarly, if the next header is an IP header, the outer header and the inner IP header can be used to determine IPsec policy.

Tunnel mode works only for IP-in-IP datagrams. Tunneling in tunnel mode can be useful when computer workers at home are connecting to a central computer location. In tunnel mode, IPsec policy is enforced on the contents of the inner IP datagram. Different IPsec policies can be enforced for different inner IP addresses. That is, the inner IP header, its next header, and the ports that the next header supports, can enforce a policy. Unlike transport mode, in tunnel mode the outer IP header does not dictate the policy of its inner IP datagram.

Happy Birthday loved daughter

Happy Birthday Daughter! Thanks for bringing so much joy into our lives each and every single day. 
Feliz aniversario filha! Obrigado, por trazares tanta felicidades em nossas vidas.