스마트공동인증 (SKT/KT/LGU+ 전용)

1.6
2.93K reviews
1M+
Downloads
Content rating
Everyone
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About this app

Smart Joint Authentication Update!
A revamped UI with enhanced security and optimization for even greater convenience.

Save your certificates in your smartphone's secure area with the Smart Joint Authentication app, allowing you to use them easily and securely!

Easily and securely sign financial transactions, identity verification, and more, even in locations without a certificate!

■ Supported OS Changes
- Minimum Android OS version (previously 4.0 → current 6.0)
- Minimum Fingerprint Recognition OS version (previously 5.0 → current 6.0)

[Main Service Information]
1. Copy and Save to the Certificate Secure Area
Copy certificates from your PC or smartphone to your smartphone's secure area and securely store them.

2. Electronic Signature
Easily create electronic signatures using your Smart Joint Authentication app password or fingerprint!

3. Account and Security Card Management
Register and securely manage your frequently used accounts and security cards!

4. DreamPass
Securely store passwords for frequently used platforms and generate new ones!

[Smart Joint Authentication Service Usage Guide]
1. Service Subscription
- This is an additional service provided by SKT, KT, and LGU+, and is billed to your mobile phone bill at KRW 990 per month (including VAT, prorated daily).

- Inquiries: ☎ 114 (without area code) / Dream Security Customer Center ☎ 1688-0124

2. Importing the Certificate
From the official website (https://smartcert.kr), import the certificate into the Smart Joint Authentication app and save it in the secure area.

3. Electronically Sign
① In the electronic signature program, select "Smart Authentication" or "Security Token" → Mobile_SmartCert and enter the number. ② Enter the last two digits of the authentication number in the Smart Joint Authentication app. ③ Complete the signature using your app password or biometric authentication.

[Note]
1. The secure area certificate cannot be copied to another location.
2. The certificate must be deleted before deleting the app.
3. If the password is entered incorrectly 10 times, the app must be initialized and the password reset.
Updated on
Sep 12, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

1.6
2.89K reviews
Shannon Kindred
January 26, 2024
Says my phone is prepaid when it isn't. Refuses to authenticate.
1 person found this review helpful
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Kumar Pathak
March 6, 2023
Its useless... he'll...😡😡😡
1 person found this review helpful
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강민철
March 5, 2025
이딴걸 돈받고 파냐 쓰레기가
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What’s new

기능 수정

App support

Phone number
+8216880124
About the developer
(주)드림시큐리티
mobile@dreamsecurity.com
성동구 아차산로 126, 10층(성수동2가, 더리브 세종타워) 성동구, 서울특별시 04783 South Korea
+82 10-7117-7314