(Cryptographic Solutions) CompTIA Security + SYO-701
Dion Training EXAM LATEST 2025/2026 ACTUAL TEST
ACCURATE QUESTIONS AND CORRECT DETAILED
ANSWERS (CORRECT VERIFIED SOLUTIONS) CURRENTLY
UPDATED VERSION |ALREADY GRADED A+
RC Cipher Suite (RC4, RC5, RC6) [A Symmetric Algorithm]
Created by cryptographer, Ron Rivest. RC4 A stream cipher with
variable key sizes from 40 to 2048 bits, used in SSL and WEP. -
RC5 A block cipher with key sizes up to 2048 bits. -RC6 Based on
RC5, was considered as a DES replacement.
Public Key Cryptography [A Asymmetric Algorithm]
No shared secret key required. Uses a key pair—public key for
encryption and private key for decryption. Provides
confidentiality, integrity,
authentication, and non-repudiation.
Confidentiality with Public Key [A Asymmetric Algorithm]
Encrypt data using the receiver's public key. Only the recipient with the
corresponding private key can decrypt it.
,Integrity and Authentication with Digital Signature [A Asymmetric
Algorithm]
Create a hash digest of the message. Encrypt the hash digest
with the sender's private key to ensure message integrity, non-
repudiation, and confidentiality.
Digital Signature [A Asymmetric Algorithm]
A hash digest of a message encrypted with the sender's private key,
letting the recipient know the document was created and sent by
the person
claiming to have sent it.
Diffie-Hellman [A Asymmetric Algorithm]
Used for key exchange and secure key distribution. Vulnerable to man-
in-
the-middle attacks unless authentication is applied. Commonly used in
VPN tunnel establishment (IPSec).
RSA (Ron Rivest, Adi Shamir, Leonard Adleman) [A Asymmetric
Algorithm]
Used for key exchange, encryption, and digital signatures. Relies on
the
mathematical difficulty of factoring large prime numbers. Supports key
sizes from 1024 to 4096 bits. Widely used in organizations and multi-
factor
authentication.
, Elliptic Curve Cryptography (ECC) [A Asymmetric Algorithm]
Efficient and secure, uses algebraic structure of elliptical curves.
Commonly used in mobile devices and low-power computing. Six
times more efficient than RSA for equivalent security. Variants
include ECDH, ECDHE, and
ECDSA.
Hashing
A one-way cryptographic function that produces a unique
message digest from an input. Changes drastically even with minor
changes in input. Is used to verify data integrity and detect any
changes
Hash Digest
Like a digital fingerprint for the original data. Always of the same
length regardless of the input's length.
MD5 (Message Digest Algorithm 5)
Creates a 128-bit hash value. Limited unique values, leading to
collisions. Not recommended for security-critical applications due to
vulnerabilities.
SHA-1 (Secure Hash Algorithm 1)
Produces a 160-bit hash digest, less prone to collisions than MD5.
Dion Training EXAM LATEST 2025/2026 ACTUAL TEST
ACCURATE QUESTIONS AND CORRECT DETAILED
ANSWERS (CORRECT VERIFIED SOLUTIONS) CURRENTLY
UPDATED VERSION |ALREADY GRADED A+
RC Cipher Suite (RC4, RC5, RC6) [A Symmetric Algorithm]
Created by cryptographer, Ron Rivest. RC4 A stream cipher with
variable key sizes from 40 to 2048 bits, used in SSL and WEP. -
RC5 A block cipher with key sizes up to 2048 bits. -RC6 Based on
RC5, was considered as a DES replacement.
Public Key Cryptography [A Asymmetric Algorithm]
No shared secret key required. Uses a key pair—public key for
encryption and private key for decryption. Provides
confidentiality, integrity,
authentication, and non-repudiation.
Confidentiality with Public Key [A Asymmetric Algorithm]
Encrypt data using the receiver's public key. Only the recipient with the
corresponding private key can decrypt it.
,Integrity and Authentication with Digital Signature [A Asymmetric
Algorithm]
Create a hash digest of the message. Encrypt the hash digest
with the sender's private key to ensure message integrity, non-
repudiation, and confidentiality.
Digital Signature [A Asymmetric Algorithm]
A hash digest of a message encrypted with the sender's private key,
letting the recipient know the document was created and sent by
the person
claiming to have sent it.
Diffie-Hellman [A Asymmetric Algorithm]
Used for key exchange and secure key distribution. Vulnerable to man-
in-
the-middle attacks unless authentication is applied. Commonly used in
VPN tunnel establishment (IPSec).
RSA (Ron Rivest, Adi Shamir, Leonard Adleman) [A Asymmetric
Algorithm]
Used for key exchange, encryption, and digital signatures. Relies on
the
mathematical difficulty of factoring large prime numbers. Supports key
sizes from 1024 to 4096 bits. Widely used in organizations and multi-
factor
authentication.
, Elliptic Curve Cryptography (ECC) [A Asymmetric Algorithm]
Efficient and secure, uses algebraic structure of elliptical curves.
Commonly used in mobile devices and low-power computing. Six
times more efficient than RSA for equivalent security. Variants
include ECDH, ECDHE, and
ECDSA.
Hashing
A one-way cryptographic function that produces a unique
message digest from an input. Changes drastically even with minor
changes in input. Is used to verify data integrity and detect any
changes
Hash Digest
Like a digital fingerprint for the original data. Always of the same
length regardless of the input's length.
MD5 (Message Digest Algorithm 5)
Creates a 128-bit hash value. Limited unique values, leading to
collisions. Not recommended for security-critical applications due to
vulnerabilities.
SHA-1 (Secure Hash Algorithm 1)
Produces a 160-bit hash digest, less prone to collisions than MD5.
