What is blockchain

Blockchain is a distributed management technology in which all "nodes" (computers participating in the blockchain network) share the same data, instead of centrally managing data on one server.

Records of transactions are stored in blocks, and the data are connected in chronological order. Each block contains the contents of the previous block as a hash value. Hash values are generated by an algorithm called a hash function and are transformed only in one direction, so a given piece of data will only yield the same hash value.

If the contents of a certain block are tampered with, the hash value of subsequent blocks will be inconsistent with the legitimate one, and the block will be interrupted. Blocks after the break are discarded, and regular data is received from neighboring nodes to self-repair.
From this property, it can be said that the blockchain has excellent tamper resistance.

So how are transaction records stored in blocks?

Users use their private keys to electronically sign transaction data. Digitally signed data (transactions) is temporarily stored in an area called a "memory pool". It is then stored in a block by passing verification using the public key paired with the private key.

Utilization of various blockchains

Blockchain technology is used to determine the authenticity of branded products due to its excellent tamper resistance, but it is also used in various other situations such as supply chain management, ID, and personal information management.

In the present age where DX is accelerating, there is no doubt that “blockchain” will further develop and spread along with technologies such as “AI” and “IoT”.


<Usage example>

• supply chain management
• Management of ID and personal information
• Authenticity proof
• Medication tracking
• Linking and trading in-game items with tokens
• Data collection by IoT
• Ticket management

Threats hidden in blockchain

As mentioned above, the blockchain has excellent tamper resistance, but if the private key is stolen, even unauthorized transaction records will be stored in the block. Also, if you lose your private key, you will lose control over your transactions.

Security products provided by Infineon can protect users' data that should be protected from various attacks.
​SECORA™ Blockchain, which will be introduced next, is a security product for blockchain.

SECORA™ Blockchain

Infineon offers security features for blockchain,
We will provide ready-to-use as a completed form of IC + NFC antenna + software + package.

SECORA™ Blockchain reduces commercial risk and increases trust in blockchain systems by providing a “vault” that securely stores users’ private keys.

Comparison with QR code and NFC tag

QR codes and NFC tags are often used for brand protection today.

Compared to those methods, SECORA™ Blockchain offers strong security that prevents mass production by dead copies.

starter kit

■BLOCKCHAIN START KIT

[Card type kit with IC chip]
・Interface: ISO/IEC 14443
・Memory: 500kByte SOLID FLASH™ NVM
12kByte RAM
・CPU: 16bit
・Target encryption: AES-256bit
・Asymmetric encryption: ECC-256bit
・Ambient temperature: -25 to +85 °C (Chip)
-25 to +70 °C (ID1 card body)

Click here for starter kit quotes and inquiries