Contactless SmartCard

Another type of smartcard is the contactless. The contacless Smart Card chip communicates with the card reader through Radio Frequency ID (RFID) induction technology at data rates of 106 to 848 kbit/s. These cards require close proximity to the antenna to complete transaction. They are often used when transactions must be processed quickly or hands-free and it can be used without even removing them from wallet.
The standard for contactless smart card communications is ISO/IEC 14443. The standard defines two types of contactless cards called "A" and "B". This standard defines the communications of the card to the reader at distances up to 10 cm.
There had been proposals for ISO/IEC 14443 types C, D, E, F and G that have been rejected by the International Organization for Standardization.[citation needed] An alternative standard for contactless smart cards is ISO 15693, which allows communications at distances up to 50 cm.
Like smart cards with contacts, contactless cards do not have a battery. Instead, they use a built-in inductor to capture some of the incident radio-frequency interrogation signal, rectify it, and use it to power the card's electronics.
A related contactless technology is RFID (radio frequency identification). In certain cases, it can be used for applications similar to those of contactless smart cards, such as for electronic toll collection. RFID devices usually do not include writeable memory or microcontroller processing capability as contactless smart cards often do.

Communication protocols
The common communication protocol of contactless smartcard are as follows:
Communication protocols Name Description
T=0 Character-level transmission protocol, defined in ISO/IEC 7816-3
T=1 Block-level transmission protocol, defined in ISO/IEC 7816-3
ISO/IEC 14443 APDU transmission via contactless interface, defined in ISO/IEC 14443-4


 

Unique Identifier (UID)

Unique Identifier (UID): All ISO-compliant smart cards are provided with a UID number (a kin to a VIN number on a vehicle). For interoperability purposes, a card's UID is open and available to be read by all compliant readers. Since this unique number is not secured by keys, reading the UID of a smart card is comparable to reading a proximity card, mag stripe card or other technology that utilizes open, unsecured numbers.

Advantages of Contactless Smart Cards

There are a number of advantages to consider when comparing contactless technology to contact smart cards and 125 kHz proximity cards:

1. Convenience: Given the choice, users will virtually always choose contactless over contact technology. Contactless smart card users do not have to worry about where to insert the card, how to insert the card, or how fast to slide the card.

2. Less Maintenance/Warranty: Contactless smart cards require very little wear and tear maintenance because they contain no moving parts and require no points of contact. As a result, most contactless smart cards come with lifetime warranties covering defects and workmanship.

3. Higher Security: Contactless products are uniquely capable of providing optimal transmission security with optional encryption and mutual authentication features. Mutual authentication is a three-way communication process between a card and reader using hashed, encrypted messages to authenticate each other without broadcasting a shared secret key.

4. Large Memory: Contactless cards have a data storage capacity approximately 100 times greater than that of a proximity card. Contactless smart cards can also process information, calculate mathematical formulas and perform other computing functions.

5. Enhanced Privacy: Even large biometric templates can be stored and verified using a single contactless smart card, allowing private information to stay in the possession of the card holder instead of being stored in a data base.

6. Versatile Form Factors: Unlike its contact counterparts, contactless smart communication can utilize a variety of credential technologies. Keychain fobs, watches and even stickers can be used as contactless credentials.

7. Multiple Applications: Carrying a contactless smart card is like carrying many cards in one. A single contactless smart card can manage multiple applications such as access control, payment systems, cashless vending, paring, mass transit, etc. Additional features and applications can be added to a contactless smart card as user needs evolve.

8. Future Protection: Contactless smart technology will no doubt soon replace mag strip and proximity technologies. Choosing contactless products now will avoid the use of obsolete and outdated systems while providing the best avenue for system expandability.

ISO 15693

ISO 15693 is a 13.56 MHz technology referred to as vicinity because it provides greater operational read ranges, making it the preferred choice for many high-traffic locations like access control.

Card Technology Overview (Proximity, Smartcard Contact and contactless)

MIFARE® is a 13.56 MHz contactless technology family of microprocessors developed by Philips. MIFARE is the most common contactless chipset on the market and is used in most applications around the globe. It is an ISO 14443 product that ensures compatibility with future products. Cards can be purchased that contain memory up to 32k bits, a capacity robust enough to process the largest biometric templates while still incorporating other applications.

DESFire® is a high-end chipset in the MIFARE family that is the first chip compliant with the Government Smart Card Interoperability Specification (GSC-IS). The GSC-IS standard was created to ensure the interoperability of contactless and contact smart cards throughout the federal government.

DES Encryption is a strong cryptographic algorithm protecting classified information. It is a public algorithm determined by the National Institute of Standards and Technology (NIST) to be open, inexpensive, widely available and – most of all – very secure.

Triple DES is slower than regular DES but its longer key length and triple encryption process is billions of times more secure. Its advantage over other security algorithms is that it is based on the DES algorithm, making it easy to modify existing software to incorporate triple DES. Triple DES is also public with proven reliability.

my-d® is a 13.56 MHz contactless technology family of microprocessors developed by Infineon Technologies, one of the world's leading semiconductor companies. Its advanced security algorithms also make it a worldwide leader in ISO 15693 contactless technology.

iCLASS® is a proprietary, ISO 15693 compliant, 13.56 MHz contactless product line developed by HID Corporation (an industry-leading card and reader manufacturer).

Contactless Smart Card ISO-14443

ISO 14443 is a four-part contactless standard consisting of physical card characteristics, radio frequency power and signal interference, initialization and anti-collision and transmission protocols.

The operating frequency defined in this standard is 13.56 MHz, providing a read range up to 4 inches (10 cm).

There are two "flavors" of ISO-14443: Type A and Type B. Although originally meant to serve different functions, both Type A and Type B are now microprocessor standards similar in function. However, ISO 14443A is the more commonly used technology, while Type B is used primarily in banking applications.

Due to faster data speeds, 14443 technology is recommended for applications in which extensive amounts of data, such as large biometric templates, need to be transmitted.

Anticipating an increase in data-intensive applications requiring high data rates, the U.S. government recently selected ISO-14443 as its official standard.

Proximity Card

Proximity can refer to ISO14443 or to the older 125 kHz technology traditionally used in access control. 125 kHz proximity is not "smart" technology and is not governed by ISO standards. 125 kHz proximity is typically proprietary, requiring that cards and readers be purchased from the same vendor.

A smart card pinout

Below are the smart card pinout and description
VCC : Power supply input
RST : Either used itself (reset signal supplied from the interface device) or in combination with an internal reset control circuit (optional use by the card). If internal reset is implemented, the voltage supply on Vcc is mandatory
CLK : Clocking or timing signal (optional use by the card).
GND : Ground (reference voltage)
VPP : Programming voltage input (deprecated / optional use by the card)
I/O : Input or Output for serial data to the integrated circuit inside the card.

Source:

Clean Your Kidneys

Years pass by and our kidneys are filtering the blood by removing salt, poison and any unwanted entering our body. With time, the salt accumulates and this needs to undergo cleaning treatments and how are we going to overcome this?

 

It is very easy, first take a bunch of parsley and wash it clean

 

Then cut it in small pieces and put it in a pot and pour clean water and boil it for ten minutes and let it cool down and then filter it and pour in a clean bottle and keep it inside refrigerator to cool.

 

Drink one glass daily and you will notice all salt and other accumulated poison coming out of your kidney by urination also you will be able to notice the difference which you never felt before.

 

Parsley is known as best cleaning treatment for kidneys and it is natural!  

Parsley: One of the World’s Seven Most Potent Disease-Fighting Spices

Parsley (Petroselinum crispum), the world's most popular culinary herb is also known as "rock celery" and belongs to the Umbelliferae family of plants. Parsley is one of the world's seven most potent disease-fighting spices which also include Ginger, Oregano, Cinnamon, Turmeric, Sage, and Red chilli peppers. Parsley grows in most climates and is readily available throughout the year. It is a biennial plant which means that it produces seeds during its second year of production and will reseed itself if you let it. 

While parsley is a wonderfully nutritious and healing food, it is often under-appreciated. Most people do not realize that this vegetable has more uses than just being a decorative garnish that accompanies restaurant meals. 

Parsley is native to the Mediterranean region of Southern Europe and has been cultivated for more than 2,000 years. It was originally used as a medicinal plant (see below) prior to being consumed as a food. Ancient Greeks held parsley to be sacred, using it to not only adorn victors of athletic contests, but also for decorating the tombs of the deceased. While it is uncertain when and where parsley began to be consumed as a seasoning, historians think it may be sometime during the Middle Ages in Europe. Some historians credit Charlemagne with its popularization as he had it grown on his estates. 

Parsley's Many Therapeutic Health Benefits Include Its Use For:

  • Anemia: Builds up the blood because it is high in iron.  The high vitamin C content assists the absorption of iron.
  • Antioxidant: Increases the anti-oxidant capacity of the blood.
  • Bactericidal (kills bacteria)
  • Bad breath
  • Baldness: Believe it or not, men even scrubbed parsley onto their scalps to cure baldness—which doesn't work.
  • Blood purifier
  • Blood vessel rejuvenation: Maintains elasticity of blood vessels, and helps to repair bruises.
  • Diarrhea is greatly helped by drinking parsley tea.
  • Digestion: Parsley is an excellent digestion restorative remedy. It improves the digestion of proteins and fats therefore promoting intestinal absorption, liver assimilation and storage. Because of its high enzyme content, parsley benefits digestive activity and elimination.
  • Dissolves cholesterol within the veins
  • Diuretic
  • Ear health: Treats deafness and ear infections.
  • Edema: Acts as a diuretic and blood vessel strengthener.
  • Fatigue: Parsley is high in iron so helps repair and provides components for better blood cells.
  • Gallstones: Helps dissolve them.
  • Glandular support of the liver, spleen, kidneys and adrenal glands.
  • Gout
  • Hormonal support: In women, parsley improves estrogen and nourishes and restores the blood of the uterus. Conditions like delayed menstruation, PMS, and the menopause (dry skin, irritability, depression and hair loss) can often improve.
  • Hormone balancing is achieved through the volatile fatty acids contained in parsley.
  • Immune booster: The high vitamin C, beta carotene, B12, chlorophyll and essential fatty acid content render parsley an extraordinary immunity enhancing food. Parsley is an immune-enhancing multi-vitamin and mineral complex in green plant form and one of the most important herbs for providing vitamins to the body.
  • Inhibits tumor formation, particularly in the lungs.
  • Insect bites: Rub on to relieve the swelling and itch.
  • Jaundice
  • Kidneys: Parsley is effective for nearly all kidney and urinary complaints except severe kidney inflammation. It improves kidney activity and can help eliminate wastes from the blood and tissues of the kidneys. It prevents salt from being reabsorbed into the body tissues; thus parsley literally forces debris out of the kidneys, liver and bladder. It helps improve edema and general water retention, fatigue and scanty or painful urination.
  • Liver congestion: It enriches the liver and nourishes the blood. Parsley helps reduce liver congestion, clearing toxins and aiding rejuvenation.
  • Menstrual irregularity: Parsley helps to make the cycles regular by the presence of apiol which is a constituent of the female sex hormone estrogen. 
  • Menstrual pain 
  • Night blindness: Bad eyesight is a sign of Vitamin A deficiency.
  • Rheumatism
  • Spleen strengthening: The parsley root in particular strengthens the spleen, and can, therefore, treat malabsorption.
  • Stamina loss and low resistance to infection, point to a sluggish liver. This can manifest itself in blood deficiencies, fatigue, a pale complexion and poor nails, dizzy spells, anemia and mineral depletion.
  • Stomach problems
  • Strengthens loose teeth: In the Middle Ages parsley was used for many conditions including 'fastening teeth' (Scurvy, which is caused by a Vitamin C deficiency, makes the gums spongy and the teeth loose.)
  • Uterine tonic
  • Weight loss benefits from being a diuretic


Nutritional Benefits of Parsley:


Parsley is a nutrient powerhouse containing high levels of beta carotene, vitamin B12, folate, chlorophyll, calcium, more vitamin C than citrus fruits, and just about all other known nutrients. Parsley is a moistening, nourishing, restoring, 'warming' food, pungent with a slightly bitter, salty flavor. It enhances and stimulates the energy of organs, improving their ability to assimilate and utilize nutrients. 

Beta carotene is used for protein assimilation. This nutrient benefits the liver and protects the lungs and colon. Beta-carotene is converted by the body to vitamin A, a nutrient so important to a strong immune system that its nickname is the "anti-infective vitamin." 

Chlorophyll Parsley is abundant in chlorophyll, thus purifying and inhibiting the spread of bacteria, fungi and other organisms. Chlorophyll from parsley is slightly anti-bacterial and anti-fungal which acts to enhance immune response and to relieve mucus congestion, sinusitis and other 'damp' conditions. Chlorophyll, high in oxygen, also suppresses viruses and helps the lungs to discharge residues from environmental pollution. 

Essential Fatty Acids Parsley is a source of alpha-linolenic acid, an important essential fatty acid that is too frequently deficient in today's diets. 

Fluorine is an important nutritional component abundantly found in parsley. Fluorine has an entirely different molecular structure from chemically-produced fluoride. Tooth decay results from a shortage of fluorine, not fluoride. It is the combination of calcium and fluorine which creates a very hard protective surface on teeth and bones. Fluorine also protects the body from infectious invasion, germs and viruses. 

Folic Acid, one of the most important B vitamins, but one of its most critical roles in relation to cardiovascular health is to convert homocysteine into benign molecules. Homocysteine is a potentially dangerous molecule that, at high levels, can directly damage blood vessels and increase the risk of heart attacks and stroke in people with atherosclerosis or diabetic heart disease. Folic acid is also a critical nutrient for proper cell division and is therefore vitally important for cancer-prevention in two areas of the body that contain rapidly dividing cells--the colon, and in women, the cervix.  

Iron: The iron content of parsley is exceptional with 5.5mg per100g (4oz). A half-cup of fresh parsley or one tablespoon dried has about 10 percent of your iron daily requirements.  Plus, parsley has the vitamin C your body needs to absorb that iron.

Protein: Parsley is made up of 20% protein. (About the same as mushrooms.)

Vitamin B12 Parsley contains traces of B12 producing compounds. Such compounds are needed for the formation of red blood cells and normal cell growth, important for fertility, pregnancy, immunity and the prevention of degenerative illness. The action of vitamin B12, however, is inhibited by birth control pills, antibiotics, intoxicants, stress, sluggish liver, and excess bacteria or parasites in the colon or digestive tracts. Parsley helps to counteract these inhibitors.

Vitamin K: Getting at least 100 micrograms of Vitamin K a day can drastically cut your risk of hip fracture. Vitamin K is necessary for bones to get the minerals they need to form properly. Parsley is loaded with vitamin K (180 mcg per 1/2 cup). Cooking parsley nearly doubles its Vitamin K.

Vitamin C: Parsley contains more vitamin C than any other standard culinary vegetable, with 166mg per 100g (4oz). This is three times as much as oranges. Flavonoids, which make up the Vitamin C molecule, maintain blood cell membranes, and act as an antioxidant helper.

Volatile oil components - including myristicin, limonene, eugenol, and alpha-thujene. Parsley's volatile oils, particularly myristicin, have been shown to inhibit tumor formation in animal studies, and particularly, tumor formation in the lungs. It acts as an antioxidant that can help neutralize particular types of carcinogens (like the benzopyrenes that are part of cigarette smoke, charcoal grill smoke, and the smoke produced by trash incinerators) .

Parsley also contains calcium (245mg per 100g), phosphorus, potassium (1000mg per 4 oz), manganese (2.7mg per 100g), inositol, and sulphur.   

How to Use Parsley:


Top off your sandwiches with it, include it in your salad greens, put it in Tabbouli or better yet, toss it into simmering soups, stews and sauces. We eat it raw in salads and those days when I can't eat it raw, I often add a couple of parsley capsules to my nutritional supplements. 

Parsley juice, as an herbal drink, is quite powerful and is usually taken in quantities of about 2 fl oz (50ml) three times a day and is best mixed with other juices. I noticed that it's most effective to juice parsley in between other vegetables as the juice is heavy and thick and doesn't move through some juicers very readily.

Types of Parsley:

The two most popular types of parsley are curly parsley and Italian flat leaf parsley.  They are both related to celery. The Italian variety has a more fragrant and less bitter taste than the curly variety. There is also another type of parsley known as turnip-rooted (or Hamburg) that is cultivated for its roots, which resemble salsify and burdock. Chinese parsley is actually cilantro.

How to Pick and Care for Parsley:

Whenever possible, choose fresh, dark green, organically grown parsley that looks fresh and crisp over the dried form of the herb since it is superior in flavor. Avoid bunches that have wilted or yellowed leaves indicating over-mature or damaged produce.

Parsley can be stored loosely wrapped in a damp cloth or plastic bag and refrigerated for up to a week. Wash just before using. If the parsley wilts, either sprinkle it lightly with some water or wash it without completely drying it before putting it back in the refrigerator. 

The best way to clean it is just like you would spinach. Place it in a bowl of cold water and plunge it up and down like you would a toilet plunger. This will allow any sand or dirt to dislodge. Remove the leaves from the water, empty the bowl, refill it with clean water and repeat this process until no dirt remains in the water.

If you have excess flat-leaved parsley, you can easily dry it by laying it out in a single layer on a clean kitchen cloth. I pre-chop mine (both varieties) and place it on a cookie sheet on top of the refrigerator where it is warm. Stir it occasionally to allow consistent drying. Once dried, it should be kept in a tightly sealed container in a cool, dark and dry place.

Some feel the curly leaved variety is best preserved by freezing, as opposed to drying. Although it will retain most of its flavor, it has a tendency to lose its crispness, so it is best used in recipes without first thawing.

GOOD SOURCES OF Omega-3

 Level of Omega-3

 Level of Omega-3

MARINE SOURCES  mg/100g

PLANT SOURCES  mg/100g

Food Source

Fatty Acids*

 Food Source

Fatty Acids*

KING OSCAR SARDINES

4,000

SOYBEANS, 1 CUP

500

JOHN WEST SARDINES

2,800

BAKED BEANS, SMALL TIN

340

JOHN WEST MACKEREL

3,600

BROCOLLI, 1 CUP

100

JOHN WEST RED SALMON

2,700

CABBAGE, 1 CUP

100

FARMLAND TUNA

400

LINSEEDS, 1 TBSP

900

SALMON, FRESH

2,500

WALNUTS, 1 TBSP

750

SALMON, ATLANTIC

1,400

PECANS, 1 TBSP

160

SALMON, AUSTRALIAN

600

EGGS, 1

20

MACKEREL

700

OMEGA-ENRICHED EGGS

250

MULLET

1,300

CANOLA SPREAD, 2 TSP

500

TREVALY

1,000

CANOLA OIL, 1 TBSP

2,000

TUNA

600

SOY & LINSEED BREAD, 2 slices

1,800

TAILOR

800

FLAXSEED OIL, 1 TBSP

11,000

TARAWHINE

700

WHITING

300

*Omega-3 levels are approximate, as differing level occur due to seasonal variations and whether fish are caught in a fed or fasted state.

GRENADIER, BLUE

500

Omega-enriched Bread, 2 slices **

121

** Omega-3 fish oil is added to these products.

Benefits of Omega-3 and Omega-6 Fatty Acids

While both omega-6 and omega-3 fatty acids belong to what's called polyunsaturated fats, they have distinct differences. They are both referred to as "essential" because they are a necessary part of sustaining a healthy body. The importance is underlined by the fact that our bodies cannot make them, so we must get them through dietary means.

Omega-3s get most of the press, particularly for their anti-inflammatory and heart disease prevention benefits. Additional benefits include improving arthritis, preventing cancer, and improving your skin's condition.

Like an infomercial… but wait, there's more! Omega-3s improve eye health, and benefit brain function, improving mood and memory.

Dietary sources of omega-3 fatty acids include fish, such as salmon, rainbow trout, black cod, and sardines. If you are a vegetarian, don't like fish, or just want to mix it up, walnuts, flaxseeds, beans, and winter squash are a few examples of of plant-based omega-3 sources.

The role of omega-6 fatty acids is a little more complicated.

Omega-6 is an important part of a healthy diet, having similar benefits as omega-3. Clinical studies have shown that omega-6 helps reduce arthritis pain, clear acne, and aid in cancer treatment. But, too much omega-6 can cause problems, including inflammation, heart attacks, thrombotic stroke, arrhythmia, arthritis, osteoporosis, mood disorders, obesity, and cancer. The trick is to strike a balance.

Omega-6 deficiency is very rare in the U.S. The American diet typically contains more than 10 times the needed amount of omega-6. That's because it comprises the primary oil ingredient that is added to most processed foods, and we all know that processed foods are in abundance in our diets.

While this balancing act may seem complicated, it ultimately boils down to the basics of healthy eating: minimize processed foods, and include ample servings of fish in your diet (2-3 times a week), and/or plant-sources of omega-3 and omega-6 fatty acids. It's essential to your health.


Source:
http://www.dietsinreview.com/diet_column/12/benefits-of-omega-3-and-omega-6-fatty-acids/

Five Foods That Will Save Your Heart

One way to prevent heart disease is to eat healthy. Five different foods that can literally save your heart are lited below. These are not the only five foods that protect your heart, but they stand out as star performers.

1. Garlic: Known as "the stinking rose," this herb does not stink when it comes to heart health. Numerous studies have demonstrated potential benefits of regular garlic consumption on blood pressure, platelet aggregation, serum triglyceride level, and cholesterol levels – all of which keep your ticker ticking. The other thing I like about garlic is that it can be used to season food so you can cut back (way back) on the salt.

2. Salmon: Swap out the burger high in saturated fat with salmon. Everyone has room for a little saturated fat, but a little goes a long way. A typical cheeseburger has more than a half day's worth (from the beef and the cheese). Saturated fat will clog your arteries and put you at greater risk for a heart attack. Salmon, on the other hand, lowers your risk thanks to heart healthy fats. Omega-3s help prevent erratic heart rhythms, make blood less likely to clot inside arteries, improve the ratio of good cholesterol to bad cholesterol, and prevent cholesterol from becoming damaged. (Only after cholesterol has been damaged does it clog arteries.)

3. Berries and Cherries: I gotta give equal props to nature's candy here. These sweet treats are high in polyphenols, which prevent cell damage that can lead to unhealthy blood vessels and heart. In the winter months, I opt for the frozen fruits. Try thawing a bag of frozen strawberries in the refrigerator. Top unsweetened, steel-cut oatmeal with these berries and some of the juice and your heart will thank you with every beat.

4. Quinoa: Commonly mistaken for a grain, these tiny sprouted seeds are an excellent source of magnesium, the mineral that relaxes blood vessels. Low dietary levels of magnesium are associated with increased rates of hypertension, ischemic heart disease and heart arrhythmias. Yes, it's as bad as it sounds. Quinoa cooks up quickly and makes great leftovers. Mix in grilled vegetables and roasted chicken for a one-pot dish.

5. Hot Cocoa: How sweet is this? Hot cocoa is chock-full of antioxidants – twice as much as red wine and three times more powerful than green tea. The chilly air of February is no match for a cup of hot cocoa. Here's a tip: many hot chocolate mixes are loaded with sugar. Buy 100% cocoa and then add a small amount of sugar. A teaspoon is enough for me. Don't forget there are natural sugars in the milk so you're better off starting with less sugar.
 
---
 
I just got this article from an email circulating around the office. I believe that this is good for health concious people. In as much as I would like to return the compliment to the person that wrote this article, however, the email that circulated didn't have the information. My apology.